Category Archives: News

STIC Incentive Program Funds are Available!

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The Federal Highway Administration (FHWA) offers STIC Incentive Funding, as well as technical assistance, to support the standardization and advancement of innovative practices. The NJ STIC receives $125,000 each year and state and local public agencies in transportation are eligible to apply.

To be eligible, a project or activity must have a statewide impact in fostering a culture for innovation or in making an innovation a standard practice, and must align with FHWA’s Technology Innovation Deployment Program goals.  The NJ STIC will consider projects and activities that advance innovations such as the Every Day Counts (EDC) innovations that are being promoted by FHWA.  

Proposed STIC project ideas are prioritized by the NJ STIC for each federal fiscal year. Selected projects are then submitted to the Federal Highway Administration (FHWA) for approval. The request submittal does not guarantee funding nor award of funding.

The NJDOT Bureau of Research, Innovation and Information Transfer is ready to answer your questions and assist applicants. For more information on eligibility, proposal requirements, past funded projects, and more, please visit: the New Jersey STIC Incentive Fund Requests webpage.

NJDOT Lunch and Learn: An Inside Look at the Research Library and its Digitization Project

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In the 1940s, the State Highway Department (predecessor to the New Jersey Department of Transportation) created its first departmental library for transportation information. For the past 80 years, this depository of relevant transportation articles and materials has grown. Today NJDOT’s research library is a part of the Bureau of Research, Innovation & Information Transfer. The library offers employees several research and career development resources and holds a collection of documents of notable histories of transportation in New Jersey.

As a part of the NJDOT’s Lunch and Learn series, on February 22, 2024, Eric Schwarz, NJDOT’s research librarian, gave NJDOT employees an overview of the resources available through the NJDOT Research Library and directed a portion of his talk to “Discoveries in the First Year of the NJDOT’s Digitization Project.” The digitization project is an effort to make past documents, films, and other materials from the NJDOT archive, accessible online. Eric has been instrumental to the digitization project, leveraging resources of the multi-state Transportation Research and Connectivity Pooled Fund Study Digitization Project [TPF-5(442)].

The Lunch and Learn presentation gave NJDOT employees an overview of the NJDOT Research Library and highlighted several digitally archived historical materials and “lessons learned” during the first year of NJDOT’s digitization project.

Materials range from historic newspaper articles of The Highway to documentary clips of past infrastructure projects and initiatives. Materials have been selected, catalogued, indexed, processed, and preserved by Eric. The digitized materials are now accessible on the Internet Archive’s page for the NJDOT Research Library and contribute to the overall story of transportation in New Jersey.

Notably, the digitization efforts led to uncovering the names of several NJDOT employees who died while working for the department and its predecessor agencies. Five of these individuals were recognized at the Annual Remembrance Ceremony held in September 2023 with name plaques added to a Memorial Wall maintained by NJDOT at Headquarters. As noted during the Lunch and Learn presentation, additional documentary evidence has been found of persons who lost their lives while on duty as the digitization project has proceeded in recent months.

Eric’s presentation conveyed how the digitization project contains a well-spring of information that may prove of interest to historians and other researchers. Digitized materials like old photographs, maps and videos show the makeup of the highway commission in 1922, the number of miles in the State Highway System in 1925, and the number of women who have served as transportation commissioner. The digitized materials reveal several ways that NJDOT has contributed to safety innovations in transportation, including the implementation of cloverleafs, breakaway signs, center barriers, and the piloting and expansion of Emergency/Safety Service Patrol operations. This and other information about the state’s transportation history was made engaging and interactive through mini-pop quizzes.

Eric displayed the research poster about the Digitization Project presented at the Transportation Research Board Annual Conference held in Washington DC in January of 2024 at the Lunch and Learn event.

In addition to describing the digitization process and lessons learned participating in the pooled funded study, Eric gave an overview of the NJDOT Research Library, including its various services and available resources.

Eric noted reference and research services that can be accessed through the NJDOT Research Library. Employees, as well as other transportation professionals, may access various online resources and databases through the research library. Online databases and other sources include:

  • TRID (Transportation Research Board) — A collection of worldwide transportation research
  • Bureau of Transportation Statistics — Statistical information useful to transportation professionals
  • ROSA-P — the National Transportation Library’s Repository and Open Science Access Portal
  • ASTM Compass — Specialty documents from ASTM, AASHTO, American Welding Society
  • AASHTO (American Association of State Highway and Transportation Officials) — Standards and Publications

The research library also provides professional development tools like exam preparation books that can be lent out for several weeks. These books will help professionals prepare for a range of Civil Service and Professional Exams.

As state employees, NJDOT employees can apply for a State Library card, which must be renewed every two years. This card allows individuals to borrow print materials from the NJDOT research library, as well as the New Jersey State Library

Eric noted that links to several online resources and other information about the NJDOT Research Library can be found on the NJDOT Research Library page including links to the NJ State Library which contains additional transportation-related resources.

In addition to the recording, the Lunch and Learn presentation slides can be found here.

Resources

Notable Digitized Materials

Accelerated Innovation Deployment (AID) Demonstration Funding Opportunity Available for FY2024

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AID Demonstration Program is active again! The Accelerated Innovation Deployment (AID) Demonstration provides incentive funds to eligible entities to accelerate the implementation and adoption of innovation in highway transportation. FHWA has awarded 127 AID Demonstration grants at more than $95.7 million dollars since its launch in 2014. These funds can be used in any phase of a highway transportation project between project planning and project delivery, including planning, finance, operation, structures, materials, pavements, environment, and construction.

The 2023-2026 AID Demonstration Program will make available up to $10 million in grants in Fiscal Year (FY) 2023 and $12.5 million in FYs 2024 through 2026. One change in the new Notice of Funding Opportunity (NOFO 693JJ324NF-AIDDP) for AID Demo is the requirement for potential applications to submit Notices of Intent. While the deadline has passed for the FY 2023 solicitation period, the FY 2024 solicitation period will open on www.grants.gov on February 27, 2024, with the NOI deadline of April 16, 2024, and closing date of May 28, 2024.

The FHWA EDC-7 Team has put together this list of suggested project ideas that can help deploy the EDC innovations either via STIC Incentive Fund Grant projects or AID Demonstration applications.

Q&A: NEVI Deployment and GHG Reduction Initiatives

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New Jersey Department of Transportation, alongside other state and regional agencies, has embarked on ambitious initiatives to revolutionize its transportation fueling infrastructure through the National Electric Vehicle Infrastructure (NEVI) Deployment and through pursuit of Greenhouse Gas (GHG) emissions reduction target goals. These initiatives are rooted in the state’s commitment to the 2019 New Jersey Energy Master Plan, the New Jersey Global Warming Response 80x50Act, the 2022 Inflation Reduction Act, and the 2021 Federal Infrastructure Investment and Jobs Act, among other state and federal initiatives, to encourage electric vehicle (EV) adoption and cut transportation-related emissions, marking critical steps towards New Jersey’s climate goals.

We recently spoke with Megan Fackler, Director of Statewide Planning and Sudhir Joshi, Manager of Statewide Strategies from the New Jersey Department of Transportation (NJDOT) to learn more about NJDOT’s ongoing activities for advancing these two initiatives. Their involvement in the planning for NEVI Deployment and the Every Day Counts (EDC-7) innovation, “Integrating GHG Assessment and Reduction Targets in Transportation Planning,”  place them at the heart of the NJDOT’s carbon reduction efforts.  This interview has been condensed and edited for clarity.

NEVI Deployment Challenges and Strategies

Q: What has NJDOT been doing to advance NEVI Deployment since Plan acceptance in 2023?

A: The National Electric Vehicle Program is a program from the Joint Office of Energy and Transportation, delegated to the Federal Highway Administration. NJDOT is going to deliver this program in New Jersey.

At NJDOT, our approach has focused significantly on federally mandated stakeholder engagement on a statewide basis. Our traditional outreach, utilizing project-specific and countywide approaches, was adapted to address the breadth of the state-led, statewide initiative. This entailed actively involving various community groups, small business leaders, partner agencies, utility providers and other private industries. We have utilized various channels such as public information centers, social media, and weekly emails.

Our team coordinated with every level of our Department to prepare for our larger meetings with external stakeholders. We have had a lot of discussions internally with our subject matter experts, who have helped develop our approach to contract procurement that incorporates the comprehensive criteria outlined in the NEVI guidelines and ensures contractors are complying with state guidelines as well.

We put on a pre-bid conference on October 17, 2023 that explained the range of requirements that the awarded contractor must fulfill.  We have sought to ensure contractors understood that they would need to comply with federal and state standards. For example, chargers must be accessible within 1 mile of New Jersey’s Alternative Fuel Corridors and provide a convenient, reliable charging experience for all users.

In developing our approach, NJDOT has decided to assign a single contractor to manage an EV charging site’s full range of compliance, with priority given to DC fast chargers. A DC Fast Charge operates on a voltage of 208 to 480 volts three phase alternating current — this is not a circuit you would likely have in your home. In 20 to 30 minutes of time, the DC fast charge should deliver 80 percent of a full charge of the vehicle’s battery.

At each of the 19 EV charger stations development zones along New Jersey’s Alternative Fuel Corridors, a 4-charger station will be provided, with each of the EV chargers capable of providing simultaneous charging at 150 kilowatts. Each charger will be equipped with a Combined Charging System and a North American Charging Standard, also known as the Tesla, port.

Contractors were informed about site selection responsibilities, environmental review documentation, and the necessity for agreements with site hosts and utility providers. The contractor will choose the locations of the 19 proposed sites and will provide one comprehensive environmental review applicable to all sites. The Department also stressed the importance of planning, design, and maintenance to ensure a high-quality user experience, requiring contractors to have the proper reporting mechanisms in place to monitor satisfaction and usage. There were additional discussions on revenue opportunities, and the inclusion of disadvantaged business enterprises.

NJ Alternative Fuel Corridors (AFCs) and Direct Current Fast Charger Development Zones were shared at NJDOT’s Virtual Public Information Center sessions.

In our pre-bid meetings, we have emphasized several other requirements that an award must encompass, such as the ensuring that traditionally underserved communities are included.  The awarded contractor will need to submit: a Justice40 Plan detailing benefits and impacts on overburdened communities; a workforce development plan geared to this new technology including recruiting efforts toward underrepresented groups; and other documentation that commits to monitoring and upgrading chargers over a period of 5 years of required maintenance.

Additionally, contractors must hire pre-qualified personnel such as a NJ-licensed Professional Engineer who will design the station, before an entity installs the actual chargers. Electricians must be pre-certified by the Electric Vehicle Infrastructure Training Program (EVITP) or complete an apprentice program approved by US Department of Labor.

Following the planning and installation of DC fast chargers, contractors are also required to operate and maintain the station. For example, contractors are required to ensure that their charging stations remain operational and accessible for at least 97 percent of the time over the course of each year. These standards emphasize that trained personnel are crucial to the success of the program.

We are planning to issue and advertise an RFP in 2024 and begin issuing the first awards. Projects on the NJ Turnpike and Garden State Parkway will be handled separately from this Alternative Fuels Corridor procurement.

Q: What are some of the challenges in achieving the goals of the NEVI Deployment Plan?

A: We must ensure that we align our internal schedules to federal timelines, while also ensuring compliance with the program’s equity and environmental goals and requirements. Other challenges include coordinating with utility providers in a timely manner and including them in pre-bid discussions with contractors. In all of this, our team is also prioritizing stakeholder feedback and accounting for their feedback in our analysis.

Electric vehicle chargers by type and level.  NJDOT will focus on first deploying DC Fast Chargers. Source: Union County, NJ.

It is important to recognize that FHWA did not define for NJDOT how best to achieve the NEVI plan’s deployment goals. For example, it was unclear when we first started thinking about the project whether it made more sense to hire a single contractor to oversee the project – soup to nuts, or to break the project into contracts for different parts. The Department worked with the FHWA to develop a specific approach that supports EV charger implementation in New Jersey.

Q: What types of in-house technical expertise, knowledge, skills, and/or abilities will NJDOT need to have to aid in successful implementation of EV and larger carbon reduction goals?

A: NJDOT’s in-house capabilities are focused on two main areas of expertise: contracting and environmental compliance. First, the Division of Project Management, in conjunction with our Division of Procurement, specializes in various construction and non-construction contract types. Their policies and procedures guide NJDOT staff to ensure that all contractual aspects are timely managed.

Second, the Environmental Division plays a crucial role in addressing environmental compliance and specific site needs. These internal resources, combined with external consultants, form the backbone of NJDOT’s strategy for advancing its carbon reduction goals, and NEVI in particular.

In addition, NJDOT anticipates and prepares for future aspects of NEVI, such as inspection and maintenance requirements of EV charging stations. It is possible that inspection tasks may be outsourced as a result.

NEVI Stakeholder Engagement

Q: How are you facilitating community engagement and awareness about the NEVI Program? What are the major challenges in engaging with local government and other affected stakeholders.

A: NJDOT has implemented a few initiatives. Our outreach was mainly a success with a few key challenges. We initially encountered some skepticism from stakeholders in terms of the locations for charger sites and EVs in general. We have worked hard to maintain a robust community engagement process statewide that satisfied federally mandated outreach guidelines. This includes our Virtual Public Information Center (VPIC) sessions and online resources, which generated thousands of views and hundreds of comments.

With a focus on equity, we identified broad stakeholders from previous working groups and through our legislative partners. The Department leveraged our partnerships to help raise awareness of our engagement sessions. The goal of the VPIC sessions was to reach representatives of diverse groups, provide NEVI Program information relevant to New Jersey, and allow for individuals to comment back to the Department in ways convenient for them.

Workforce Readiness/Equity and NEVI Deployment

Q: What steps is NJDOT taking to ensure workforce readiness and environmental justice for the NEVI Program?

A: Our role principally involves conveying expectations and setting specifications for contractors. These specifications, among others, includes abiding by EVITP requirements, or an approved apprenticeship program for hiring skilled staff familiar with EV technologies. The contractor will be responsible for training and ensuring that the workforce is equipped with the necessary skills, particularly for deploying DC Fast chargers. These requirements also apply to the subcontracting process as well, where partnering with Disadvantaged Business Enterprises (DBEs) is highly encouraged.

FHWA’s framework to ensure equitable recruitment from underserved groups.

In recent years, the Department has been making a huge shift toward workforce development, such as with our investment in the Bordentown Training Center. This is an ever-evolving topic of conversation for us at NJDOT on how we can carry out our “commitment to communities” – whether it is speaking at the community colleges or opening the doors of training facilities for local municipalities. While there is nothing concrete at this time, I definitely could see EV charging maintenance integrated into the training center in the future should such support from NJDOT be needed.

We also have strategies to monitor progress towards our environmental justice goals, such as leveraging various tools and mapping technologies and producing the Community Engagement Outcomes Report (FHWA Approval of NJ NEVI Plan, 2023). The contractor’s role will be pivotal in this regard, as they will be tasked with effectuating Justice 40 initiatives and addressing environmental justice considerations in their operations.

EDC-7 Innovation and Greenhouse Gas Assessment

Q: How does NJDOT’s Carbon Reduction Strategy align with the NEVI Deployment Plan, and what steps are being taken to work with MPOs on this initiative?

A: NJDOT is taking specific steps that align with the goals of the NEVI Deployment Plan, including expanding the EV infrastructure at interstates, and then branching into more local areas. NJDOT’s Carbon Reduction Strategy directly supports the goals of reducing emissions established by Governor Murphy and President Biden. The strategy aims to meet the Governor’s mandate of 80 percent reductions by 2050, and President Biden’s goal [of carbon neutrality by 2035], through strategies aligned with the NEVI Deployment Plan.

NJDOT is working alongside its MPOs and NJ Transit partners to set and meet the FHWA’s recently issued rules on greenhouse gas emission targets. This includes coordinating regularly with MPOs to set greenhouse gas targets, share data on emissions metrics, and develop standardized methodologies for assessing reductions. This involves sharing data on VMT (vehicle miles traveled) and fuel usage to establish state benchmarks. The MPOs will have six months from the FHWA’s February 1st deadline to determine whether to adopt the state’s GHG targets or their own. We will be meeting with the MPOs in the coming week regarding these details. To that effort, NJDOT may leverage a single consultant funded through federal grants to help unify this process across the MPO regions. The department is poised to submit their final targets to FHWA, with the intention to make these documents public, ensuring transparency and community involvement.

The Carbon Reduction Strategy was in progress since December 2022, when the Carbon Reduction Working Group began the review process. This included developing strategies over the course of Winter and Spring 2023, in addition to resolving concerns brought forth by our leadership. Following our November 15th submission, FHWA will have 90 days to approve or deny the draft plan. (NJDOT CIA Team Planning & Environment Presentation, 2023)

In addition to deploying EV charging stations in line with our NEVI goals, NJDOT is exploring electrifying its own fleet and operations with technologies like electric garbage trucks. However, as we have seen this winter, concerns around reduced EV range and long charging times during cold winter temperatures could affect adoption goals if improvements in technologies do not continue. Regardless, all plans, targets, and strategies, in collaboration with MPOs, will undergo review and approval by FHWA. This process aligns with DOT’s recent guidelines for greenhouse gas reduction.

Resources

EV Infrastructure & Policy

New Jersey Department of Transportation. (2023). “NJ Approval Letter for EV Deployment Plan.” Retrieved from https://www.fhwa.dot.gov/environment/nevi/ev_deployment_plans/nj-approval-letter-fy24.pdf.

New Jersey Department of Transportation. (2023). NJDOT Electric Vehicle Infrastructure Deployment along New Jersey Alternative Fuel Corridors: Pre-bid Meeting Presentation. Retrieved from https://www.nj.gov/transportation/contribute/business/procurement/ConstrServ/documents/NJDOTNEVIPreBidMeetingOct172023PresentationRev.10-20-23.pdf

New Jersey Department of Transportation. (2022). “NEVI Program Overview.” Retrieved from https://dep.nj.gov/wp-content/uploads/drivegreen/pdf/nevi.pdf

U.S. Department of Transportation, Federal Highway Administration (n.d). National Electric Vehicle Infrastructure Formula Program, Fact Sheet. Retrieved from https://www.fhwa.dot.gov/bipartisan-infrastructure-law/nevi_formula_program.cfm

U.S. Department of Energy, Alternative Fuels Data Center. (n.d). Electric Vehicle Charging Stations.  Retrieved from https://afdc.energy.gov/fuels/electricity_stations.html

Carbon Reduction Efforts

Federal Register (2023). 23 CFR Part 490. National Performance Management Measures; Assessing Performance of the National Highway System, Greenhouse Gas Emissions Measure, Federal Highway Administration. Retrieved from https://www.govinfo.gov/content/pkg/FR-2023-12-07/pdf/2023-26019.pdf

New Jersey Department of Transportation. (2023). CIA Team – Planning & Environment: Discussions on National Performance Management Measure (GHG). Presentation by Sudhir Joshi. Retrieved from https://www.njdottechtransfer.net/wp-content/uploads/2023/12/5-Planning.pdf

U.S. Department of Transportation, Federal Highway Administration (n.d). Carbon Reduction Program, Fact Sheet. Retrieved from https://www.fhwa.dot.gov/bipartisan-infrastructure-law/crp_fact_sheet.cfm

Environmental Justice and Equity

Conley, Shannon. Konisky, David M. Mullin, Megan. (2023). Delivering on Environmental Justice? U.S. State Implementation of the Justice40 Initiative. Retrieved from doi.org/10.1093/publius/pjad018.

Argonne National Laboratory. (2022). Using Mapping Tools to Prioritize Electric Vehicle Charger Benefits to Underserved Communities. Retrieved from https://publications.anl.gov/anlpubs/2022/05/175535.pdf

U.S. Department of Energy. (2022). Incorporating Equity and Justice40 in NEVI and Beyond. Retrieved from https://www.energy.gov/sites/default/files/2022-10/Incorporating%20Equity%20and%20Justice40%20in%20NEVI%20and%20Beyond.pdf‘.

Workforce Development and Training

National Governors Association. (2023). Workforce Development in The IIJA, CHIPS, And IRA. Retrieved from https://www.nga.org/publications/workforce-development-in-the-iija-chips-and-ira/.

National Center for Sustainable Transportation. (2022). Workforce Implications of Transitioning to Zero-Emission Buses in Public Transit. Retrieved from https://escholarship.org/uc/item/3jb4b73d.

San Jose State University. (2020). Southern California Regional Transit Training Consortium: Skills Gap & Needs Assessment. Retrieved from https://transweb.sjsu.edu/sites/default/files/1932-Reeb-Southern-California-Regional-Transit-Training-Consortium-Needs-Assessment.pdf.

National Center for Sustainable Transportation. (2018). Emerging Clean Transportation Workforce White Paper. https://www.uvm.edu/sites/default/files/media/Emerging-Clean-Transportation-Workforce-White-Paper12202018.pdf.

Argonne National Laboratory. (2022). Using Mapping Tools to Prioritize Electric Vehicle Charger Benefits to Underserved Communities. https://publications.anl.gov/anlpubs/2022/05/175535.pdf

NEVI Deployment in Other States

Colorado Department of Transportation & Colorado Energy Office (2023). Colorado National Electric Vehicle Infrastructure (NEVI) Plan. https://www.codot.gov/programs/innovativemobility/assets/2023-update-of-colorado-plan-for-the-national-electric-vehicle-infrastructure-nevi-program.pdf.

Michigan Department of Transportation. (2023). Michigan State Plan for Electric Vehicle Infrastructure Deployment 2023 Update. https://www.michigan.gov/mdot/-/media/Project/Websites/MDOT/Travel/Mobility/Mobility-Initiatives/NEVI/FY23-MI-Plan-for-EV-Infrastructure-Deployment.pdf?rev=968c7cbcf92c4b2abb08573f2af0f9f5&hash=409ED1B68C1FBEE6E52E334690405162.

New Hampshire Department of Transportation. (2023). State of New Hampshire Plan For Electric Vehicle Infrastructure Deployment Update No. 1. https://www.dot.nh.gov/sites/g/files/ehbemt811/files/inline-documents/updated-nevi-plan-8-1-2023.pdf.

North Carolina Department of Transportation (2023). North Carolina Plan Update for Electric Vehicle (EV) Infrastructure Deployment Plan. https://www.ncdot.gov/initiatives-policies/environmental/climate-change/Documents/ncdot-electric-vehicle-deployment-plan.pdf.

Washington State Department of Transportation. (2023). Washington State Plan for Electric Vehicle Infrastructure Deployment July 2023 Update. https://wsdot.wa.gov/sites/default/files/2023-09/WSDOT-NEVI-Plan-Update.pdf.

Ultra High-Performance Concrete (UHPC) Applications in New Jersey – An Update

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UHPC for Bridge Preservation and Repair is a model innovation that was featured in FHWA’s Every Day Counts Program (EDC-6).  UHPC is recognized as an innovative new material that can be used to extend the life of bridges. Its enhanced strength reduces the need for repairs, adding to the service life of a facility.   

This Q&A article has been prepared following an interview with Jess Mendenhall and Samer Rabie of NJDOT, who provided an update on the pilot projects of UHPC around the state. The interview has been edited for clarity. 

Q.  While EDC-6 was underway, we spoke with your unit about the pilot projects being undertaken with UHPC.  Some initial lessons were shared subsequently in a featured presentation given to the NJ STIC.  Can you update us on results of those projects, and did they yield any benefits in the fields of safety or environmental considerations?

For the NJDOT Pilot Project, the thickness of the overlay was limited by the required depth for effectiveness, as well as the cost of the UHPC material and environmental permitting. To mitigate environmental permitting, we avoided any modifications to the existing elevations and geometry of the structure. Essentially, any removal of asphalt and concrete needed to be replaced to its original elevations.

UHPC overlays can significantly extend the service of bridge decks and even increase a structure’s capacity. Although safety improvements were not the primary objective of this application, there were rideability and surface drainage considerations in the design to enhance the conditions for the road users.

The environmental impacts of structural designs must be compared on the cradle-to-grave use cycle of the design at a project scale.  Having a focus on sustainability is imperative; however, it is more meaningful when resiliency is also considered.  While the greenhouse gas emissions of a volume of UHPC are higher than those of the same volume of concrete, UHPC enables the reduction in the amount of material required in structural designs and improves the durability of structures. Its exceptional compressive strength and toughness allow for the reduction of material usage. By minimizing maintenance requirements and extending the lifespan of infrastructure, UHPC reduces the consumption of materials, energy, and resources over time.

For example, we installed this overlay on 4 bridges as a preservation technique. Had we done nothing, they would have lasted approximately 10 more years. During that time they would have needed routine deck patching resulting in further contamination of the decks and in a condition that is no longer preservable and requires total deck replacement, with large volumes of concrete and much more environmental impact.

UHPC allowed us to take these decks that are still in decent shape and preserve them now with a relatively thin layer to make them exceed the service life of the superstructure and substructure.

Q. Has UHPC been incorporated into the design manual?

Figure 1. UHPC being placed by workers

It is not in our current design manual, but we are working on the revised design manual. UHPC is presently being used for all closure pores between prefabricated components, overlays, and link-slabs. I don’t think we are ready to standardize it quite yet. We used it on the 4 bridges and it will continue to be used, but we will not standardize it until the industry is more predictable and we get more experience to develop thorough guidelines and specifications. It is incorporated into projects as a special provision with non-standard items.

Q. Have you been receiving more requests to use this technology from around the state?

It is much more commonly specified by designers or requested for use on many of our projects. We have responded to nationwide inquiries from state transportation agencies and universities seeking our specifications or input on specific testing and procedures.

Q. What efforts do you think can be taken to encourage more adoption amongst local agencies, counties, etc.?

We are keen on inviting the counties to any training or workshop that we are hosting as well as sharing our lessons learned thus far.  I think they are aware of it.

Q. What kind of hurdles do you think exist that may limit widespread adoption?

It is possible that initial cost and industry experience with the material are still major limiting factors in adoption. We have also learned from specialty UHPC contractors that the innovation and availability of construction equipment geared for UHPC implementation are also lacking.  Bringing into focus the life cycle costs and with more implementations, we think many of these hurdles will be overcome. Additionally, once UHPC is used more in routine maintenance the implementation would be more frequent and widespread; we know there is interest specifically in UHPC shotcrete once it is available.

Q. Are you familiar with any training, workshops, or conferences that have been done for staff or their partners on this topic?

We participated in the Accelerated Bridge Construction (ABC) conference in Miami, Florida, the International Bridge Conference (IBC) in Pittsburgh, Pennsylvania and the New York State DOT Peer Exchange. In Delaware, we presented at the Third International Interactive Symposium on UHPC. We also participated in the development of a UHPC course for the AASHTO Technical Training Solutions (TTS formerly TC3) which is now published on the AASHTO TTS portal and available on our LMS internally. 

Q. Do you think there is any special training needed for the construction workforce to start using this technology?

Absolutely, the AASHTO TTS course and the EDC-6 workshops are geared towards the design and construction, TTS is more focused in the Construction. It’s an introduction to what to expect and how to implement it. UHPC is often used for repair projects, and many contractors may not have the experience or comfort with using the material.

Figure 2. UHPC Testing at Rutgers’ CAIT

Q. What are the results of the pilot projects of UHPC?

This Pilot projects program demonstrated that UHPC overlays can be successfully placed on various structures, the work can be completed rapidly to minimize traffic impacts — we estimated roughly four weeks of traffic disruption per stage, and the benefits of UHPC can help preserve the existing infrastructure. Compared to deck replacement, UHPC overlays can rehabilitate a bridge deck at exceptional speeds with unique constructability and traffic patterns, as implemented in all four structures. However, limitations exist, and further research is necessary to investigate the issues identified in the pilot project, but the potential of this material outweighs the existing limitations.

Q. Has there been long-term testing data developed to gather performance data?

To assess the performance of the UHPC overlay, we put together a testing program to include NDT as well as physical sampling and lab testing. This objective will be accomplished by first establishing baseline conditions through an initial survey followed by periodic monitoring of the UHPC-overlaid bridges over succeeding years. This will help NJDOT assess the performance of UHPC as an overlay. Overall, the results show the overlay bond is performing well.

Q. Has the data from the pilot project been used to research further applications?

Further applications for UHPC overlay are on new bridge decks/superstructures, and the data from UHPC overlay research project are being used for these projects. There is an interest in header reconstruction with UHPC. If deck joints need to be replaced, they should be constructed with conventional HPC with UHPC at the surface to provide the same overlay protection over the entire structure. Also, self-consolidating and self-leveling UHPC was preferred for the full-depth UHPC header placement to ensure proper consolidation around tight corners and reinforcement. This will be further explored for maintenance operations as well.

For future projects, in lieu of full-depth header reconstruction in a single lift, a partial depth header removal and reconstruction or alternatively two lifts of header concrete should be evaluated to coincide with the deck overlay, in which case the benefits of the fast cure times from UHPC can still be realized. Two of the four bridges experienced air voids throughout the placement. A UHPC slurry with no

fibers was placed in the identified air voids; since the voids contained exposed fibers, they were considered to create adequate bonding with the UHPC slurry.

Update (June 2025): 

Currently, NJDOT has not incorporated UHPC into the standard specifications, and no baseline document change has been issued to update the 2019 standard specifications to include UHPC. Due to rapid changes in the guide specifications, UHPC requirements are integrated into project documents as project specific special provisions, allowing for flexibility in updates. Future plans include incorporating UHPC into the standard specifications and issuing a baseline document change after the new draft bridge design manual is published.

NJDOT Special Provisions for UHPC Overlays

Resources

NJDOT Technology Transfer (2021, November). Stronger, More Resilient Bridges: Ultra High-Performance Concrete (UHPC) Applications in New Jersey.  Interview with Pranav Lathia, Retrieved from:  https://www.njdottechtransfer.net/2021/11/29/uhpc-stronger-more-resilient-bridges/

Mendenhall, Jess and Rabie, Samer. (2021, October 20). UHPC Overlays for Bridge Preservation—Lessons Learned. New Jersey Department of Transportation. https://www.njdottechtransfer.net/wp-content/uploads/2021/11/NJDOT-UHPC-Overlay-Research-Project-EDC-6-Workshop.pdf

New Jersey Department of Transportation. (2021, October 20). NJDOT Workshop Report. New Jersey Department of Transportation. https://www.njdottechtransfer.net/wp-content/uploads/2021/11/NJDOT-UHPC-Workshop-Final-Report.pdf

Rabie, Samer and Jess Mendenhall (2022, December). Design, Construction, and Evaluation of UHPC Bridge Deck Overlays for NJDOT.  NJ STIC Presentation and Recording.  Retrieved from:  https://www.njdottechtransfer.net/2022/12/18/nj-stic-4th-quarter-2022-meeting/

Safety Behavior and Gender Split Differences in Micromobility: A Q&A Interview with Researcher

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The State of New Jersey has advanced policies, programs, and projects such as complete streets that encourage greater transportation modal choice and less dependency on the single-occupancy vehicle to address climate change and promote mobility and access for all users. The NJ Statewide Bicycle and Pedestrian Master Plan and Complete Streets policy seek to increase connectivity and micromobility safety through road diets and other infrastructure changes. New Jersey Department of Transportation (NJDOT) is also sponsoring safety programs that aim to reduce traffic related fatalities. In-depth research that looks at differences across gender, race, socioeconomic status and ability may assist in expanding policies and statewide initiatives that prioritize safety and accessibility for all road users.     

This Q&A article has been prepared following an interview with Dr. Hannah Younes, a post-doctoral researcher at the Alan M. Voorhees Transportation Center at Rutgers University, who focuses on cyclists and e-scooter behavioral patterns.  Her most recent study conducted in Asbury Park, NJ observed gender differences of chosen micromobility mode, helmet usage, and location. We interviewed her to better understand the data sources and methods used in the research, its limitations and explore the applicability and implications of her research findings to the field of transportation and future research. The Q&A interview has been edited for clarity.

Q. How was your research funded?    

This work was supported by the National Science Foundation under a grant called “Making Micromobility Smarter and Safer”. The lead on this is Dr. Clint Andrews at Rutgers University and there are several other principal investigators. My study acts as a part of this multi-year research.  

Q.  Can you share a brief overview of your findings? Are the results surprising or unique compared to past research?    

We are one of the only studies comparing the safety behavior of cyclists and e-scooter users across genders. Without considering gender, we found that one-third of cyclists wore a helmet. We also found in our observations that e-scooter users did not wear a helmet. It speaks to how important it is to have safe micromobility infrastructure, especially knowing that people are unlikely to wear a helmet. In the U.S., even if you give everyone a helmet, they’re probably not going to wear it. That’s just how it is. Keeping people safe in other ways is paramount.  

The temporary bike lane created as a part of Dr. Younes research. Asbury Park, NJ

We also found that a greater proportion of women were using e-scooters than bicycles. This is important because cycling has long been a male-dominated mode of transportation, for a variety of reasons. That is true across the world. There are studies that suggest women are less likely to cycle to work because of clothing like wearing a skirt or dress or heels, or fears of sweating. E-scooters remove that hurdle since they are not as prohibitive in terms of clothing and require less physical exertion. So, the vehicle type itself may make a difference. Moreover, women place more importance on bike lane infrastructure than men.  If we are seeing that e-scooters are the preferred mode for females, perhaps e-scooters can help narrow the gender gap in micromobility. 

Q.  Can you talk a little bit about the methods used for this study? How are these methods different from past research? Why did you choose to use traffic cameras for your observations?

This work was done using manual observations, a common method in micromobility studies. Previous research had used observations collected in the field. Instead of having observers in the field, we observed traffic camera footage at one intersection. Because we were observing gender and race as well as group behavior, the footage was useful as it allowed us to pause when needed. It was also less resource intensive than having a person stand in the field since no travel expenses were associated with the analysis.  

Q.  What challenges have you found in working with and interpreting traffic camera footage? With the improvement of AI technologies, do you think there will be an opportunity to automate this process in the future?  Are there any limitations you expect from this type of innovation?  

It is very time consuming and tedious to analyze this much camera footage. We analyzed 35 hours of footage. I would love to have analyzed more, but you have to draw the line somewhere depending on the resources available for the research or project study. Most of the time, we fast forwarded until a micromobility user was detected, but it still requires undivided attention. There is a possibility with current technology to incorporate AI technologies: to use computer vision to detect humans, which then can be manually viewed by a human to assess micromobility mode, gender, and helmet use. This would likely reduce the manual labor… It would be interesting to compare the computer vision model to the work I have done… Nonetheless, computer vision does not differentiate properly between pedestrians and e-scooter users, so it is prone to misidentification, which would lengthen the time taken to observe manually.  

The view from the intersection traffic camera. Asbury Park, NJ

At this point, computer vision cannot detect gender, helmet use, and group riding properly from traffic camera footage. More high-resolution images would be needed to differentiate gender and helmet use (like unobstructed face images) and group riding requires context clues like making eye contact, waiting for one another, etc. AI has the potential, but it is not there yet.  As time consuming as it is, I am confident that we detected every person, which is why we chose to observe the footage ourselves.  

Q.  What are the limitations of this study? Do you have plans for future research to address these?  How would you like to expand your research on this topic?   

The main limitation is the geographical scope of this research; it’s a lot of work for one city. We only analyzed the behavior of micromobility in one location, Asbury Park. It isn’t clear how much the results will translate from one location to another. Mode of transportation and behavioral use depends on many different factors that vary from location to location. There is evidence that the gender gap is smaller for e-scooter users in Brisbane, Australia, but not to the extent observed in Asbury Park. Same goes with helmet use. A larger scale study would be useful. Other limitations include the types of micromobility modes: we only observed shared e-scooters and privately owned bicycles in Asbury Park. So, we’re comparing two different vehicles and two different share types to one another. When analyzing the data, we must consider both of these factors. For example, are behaviors attributed solely to the vehicle or to the share type? Probably both. When you’re looking at the gender gap, is it because it’s an e-scooter or is it because it’s shared that there is a narrower gender gap?  

 An analysis comparing shared and privately owned e-scooters with shared and privately owned bicycles would be great. Differentiating between e-bikes and bicycles would be great too, although the resolution of traffic camera footage makes it very hard to differentiate between the two. Even with an observer onsite, it would be hard to detect, so you would need a survey, but this could alter behavior. In Asbury Park, a lot of people have privately owned e-scooters now, so we could do another study in 1.5-2 years and get additional insights in the same location.  

E-bikes are a growing mode of transportation, but even with traffic camera footage, it is very hard to tell an e-bike apart from a bicycle, so maybe in that case you would need somebody on site actually observing. You’re losing the ability to pause footage, but it might be more useful if you’re looking at e-bikes. Race and age were also very difficult to observe from the footage. It could be easier if someone was in person to observe in addition to the traffic camera footage. Even then, without asking directly the age and race/ethnicity of the user, there will be bias. There are a lot of different things to consider; it really depends on what the question is.  

Q.  How would you like this research to inform transportation agencies and practitioners in New Jersey and elsewhere?    

There are several key points. Users of shared e-scooters and privately owned bicycles are different and behave differently. E-scooter users are more likely to take risks like not wearing a helmet or riding on the road. Planners must ensure that the infrastructure keeps them safe. That is, implementing dedicated protected bike lanes that are connected to a greater network and adding traffic calming measures to slow the speeds of motor-vehicles like raised crosswalks or narrower traffic lanes.

Understanding the reasons behind lane use is important as well, as there are concerns for pedestrian safety. Our research observed that lane use was different; for example, 7 percent of male cyclists rode on the sidewalk, compared to 28 percent of female e-scooter users.

Additionally, having a shared e-scooter system in a city can increase female participation in micromobility use. It is a more gender equitable mode than bicycles. Other agencies might want to implement an e-scooter share program in their town.  

Q.  Your research shows that women were more likely than men to ride on the sidewalk while using an e-scooter or bike. Given that this strategy is illegal in most parts of the country, how can planners, engineers and policymakers use this information to increase feelings of safety for female micromobility users?     

This is really interesting. From my research, there is not a lot that I could say. Implicitly, one of the reasons for someone to ride on the sidewalk instead of the road is that they feel safer on the sidewalk. There is a need to ensure that micromobility users feel just as safe on the road–that is, implement a dedicated and protected bike lane, and provide a clear separation from motor-vehicles.

From our work, we know that there are other more complex factors at play: our research had clear results for road lane use with the implementation of the bike lane, but less clear ones for sidewalk use: sidewalk use was not significantly reduced by the presence of a pop-up bike lane. To encourage safe road use, ensuring a complete network would be a start. The pop-up bike lane was not connected to another bike lane going downtown, for instance. If you’re already coming downtown on the sidewalk, you might be more likely to stay there given the existing curb that would need to be crossed to go from the sidewalk to the pop-up bike lane.  

Representation of bidirectional bicycle lanes Image via Streetmix. Ensuring cyclists and e-scooter users have safe infrastructure as shown above is important for all road users’ safety.

Q.  NJDOT is sponsoring a program to ensure the implementation of the Statewide Bicycle and Pedestrian Master Plan. In what ways could this master plan or a future one align with the findings in your study?  

The results of this study reinforce that implementing a bike lane provides a layer of safety for micromobility users. Nearly all the increase in bike lane usage came from a reduction in traffic lane usage, not in sidewalk usage. There is so much research out there that shows that bike lanes save lives; in the case of a crash, someone in a bike lane is less likely to be injured. Ensuring that plans accommodate both bicycles and e-vehicles–like e-bikes and e-scooters–is also paramount.  

Q.  The Biden Administration has set a goal to achieve a net zero emissions economy by 2050. How might a shift toward micromobility help the nation reach its climate and carbon emission goals?    

Bicycles are zero emission vehicles. E-bikes and e-scooters produce few emissions, especially privately owned ones since they don’t require rebalancing. Rebalancing shared vehicles requires a car or van and those gasoline emissions are absorbed by those shared e-scooters. Having an e-vehicle do that for rebalancing helps to reduce those emissions. Bicycle-friendly infrastructure, which reduces motor-vehicle infrastructure such as the number of traffic lanes, or parking, can also reduce motor-vehicle use and induce more environmentally friendly travel.   

Q.  How could a focus on reaching these climate goals impact the way that planners and engineers design streets?    

Motor-vehicle travel is the most polluting transportation mode. A shift towards micromobility Infrastructure, particularly in cities, can help induce travel from eco-friendly modes and reduce motor-vehicle use. This should be in conjunction with other measures, such as increasing gasoline prices, increasing parking costs, and providing subsidies for eco-friendly modes.

Resources

Blickstein, S.G., Brown, C.T., & Yang, S. (2019). “E-Scooter Programs Current State of Practice in US Cities.” Retrieved from https://njbikeped.org/e-scooter-programs-current-state-of-practice-in-us-cities-2019/

Marshall, H. (2023). “How do Female Cyclists Perceive Different Cycling Environments? – A Photo-elicitation study in Stockholm, Sweden.” Retrieved from https://gupea.ub.gu.se/handle/2077/78209

NJDOT Technology Transfer. (2020). “Tech Talk! Launching Micromobility in NJ and Beyond.” Retrieved from https://www.njdottechtransfer.net/2020/02/25/launching-micromobility-in-nj-and-beyond/

NJDOT Technology Transfer. (2021). “How Automated Video Analytics Can Make NJ’s Transportation Network Safer and More Efficient.” Retrieved from https://www.njdottechtransfer.net/2021/11/08/automated-video-analytics/

NJDOT Technology Transfer.(2022). “Research Spotlight: Exploring the Use of Artificial Intelligence to Improve Railroad Safety”. Retrieved from https://www.njdottechtransfer.net/2022/08/19/researchspotlightairailroadsafety

Rupi, F., Freo, M., Poliziani, C., & Schweizer, J. (2023). “Analysis of Gender-Specific Bicycle Route Choices Using Revealed Preference Surveys Based on GPS Traces.” Retrieved from https://www.sciencedirect.com/science/article/pii/S0967070X2300001X

Salazar-Miranda, A., Zhang, F., Maoran, S., & Ratti, C. (2023). “Smart Curbs: Measuring Street Activities in Real-Time Using Computer Vision,” Retrieved from https://www.sciencedirect.com/science/article/pii/S0169204623000348?casa_token=XPecGlOM6UQAAAAA:vnISsmV2aoJ3iVJefEeqjM24R5izcs66bvukCQObjuSWGTNokotT4CG_1h8UfLih16wn3FMg_Jo [DA1] [KR2] 

Von Hagen, L.A., Meehan, S., Younes, H., et. al. (2022), “Asbury Park Bike Lane Demonstration,” Retrieved from https://storymaps.arcgis.com/stories/c014811ac0c14735bc9c9adc2639e88f.

Younes, H., Noland, R., & Andrews, C. (2023). “Gender Split and Safety Behavior of Cyclists and E-Scooter Users in Asbury Park, NJ,” Retrieved from https://www.sciencedirect.com/science/article/abs/pii/S2213624X2300127X#b0055.

Younes, H., Noland, R., & and Von Hagen, L.A. (2023). “Are E-Scooter Users More Seriously Injured than E-Bike Users and Bicyclists?” Retrieved from https://policylab.rutgers.edu/are-e-scooter-users-more-seriously-injured-than-e-bike-users-and-bicyclists/.

Q&A: What’s EPIC2 about Internally Cured Concrete?

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Enhancing Performance with Internally Cured Concrete (EPIC2) is a model innovation in the latest round of the FHWA’s Every Day Counts Program (EDC-7). EPIC2 is recognized as an innovative new technique that can be used to extend the life of concrete bridges and roads. Internal curing increases concrete’s resistance to early cracking, allowing the production of higher-performance concretes that may last more than 75 years.

This Q&A article has been prepared following an interview and follow-up correspondence with Samer Rabie and Jess Mendenhall of the New Jersey Department of Transportation. The Q&A interview has been condensed and edited for clarity.

Q. What is Internally Cured Concrete, and how does it differ from traditional concrete?

A common issue with high performance concrete (HPC) bridge decks is that soon after the curing is done, they develop fine shrinkage cracks spread throughout the deck. Even this fine cracking can reduce the service life. In the past, we have used crack sealing materials as a mitigation effort, but when we learned about internally cured concrete, we shifted our focus to see if we could adopt it in New Jersey.

Figure 1. Illustrating the difference between conventional and internal curing

Autogenous or chemical shrinkage is specific to HPC concrete, where the w/c ratio is less than 0.42. It is due to self-desiccation, which is water consumed by the cementitious materials after setting, and that is one where internal curing can help.

There are multiple methods to implement internal curing. The method that we are considering involves  modifying a conventional concrete mixture to an internally cured concrete mixture by replacing a portion of the fine aggregate (sand) with lightweight fine aggregate. This lightweight fine aggregate (LWFA) is saturated with internal curing water, typically estimated at 7lbs of water for every 100lbs of cementitious materials used in the mixture. Next, the amount of LWA required for this amount of internal curing water is determined based on the mass of the internal curing water and the absorption of the LWFA. Once the total volume and mass of lightweight aggregate are determined, the volume (and mass) of the fine lightweight aggregate are adjusted so that the volume of LWFA and fine aggregate in the internally cured mixture is equal to the volume of the fine aggregate in the original mixture.

The LWFA will provide internal curing water within the concrete mix during curing, and prevent a condition that occurs in low W/CM ratio systems where the capillary water within the concrete matrix pores will be consumed without complete cement hydration, which can lead to cracking of the concrete matrix.

Q. How does Internally Cured Concrete improve performance?

Internal curing improves the performance of concrete by increasing the reaction of the cementitious materials and reducing internal stresses that typically develop in high-cementitious content mixtures if insufficient internal curing water is present. However, in addition to conventional curing which supplies water from the surface of concrete, internal curing provides curing water from the aggregates within the concrete. This provides a source of moisture from inside the concrete mixture, improving its resistance to cracking and overall durability.

Q. Are there any limitations on the use of internally cured concrete?

Internal curing is extremely versatile and  can generally be used anywhere traditional concrete is used. Most of the process is the same, and aggregates can be pre-saturated as needed. It follows the norms of industrial concrete production, making it accessible to any producer already familiar with the state of practice. Most of the implementation process is similar to conventional concrete.

Figure 2. Workers applying internally cured concrete to a bridge deck.

Q. What New Jersey sites were picked for use in internally cured concrete, and why?

We started with a list of all of our bridge projects, specifically projects that needed deck replacement and superstructure replacement. We then further targeted projects that allowed us to focus on implementation and quick delivery time rather than constructability and other additional challenges. We looked at projects with straightforward staging and geometry and prioritized projects with twin bridges (for example, northbound and southbound). This would allow us to do one bridge with traditional HPC and the other with internally cured HPC, providing us with an excellent controlled opportunity to study and compare the results.

Various sites have been screened throughout the state. Currently, eight bridges are under consideration, with a project scope of work of deck and superstructure replacement. The rationale included the project scope of work, CIP deck slabs, project schedule, staging constraints, and avoiding heavily skewed bridges.

Q. Have any life cycle cost analyses been performed?

We have not prepared one ourselves, but we do plan on doing so in the future. First, we will need to get these projects out to construction and get actual cost data. We’re expecting higher upfront costs, but if cracking is reduced then the life cycle costs and future maintenance and reconstruction needs can be significantly reduced.

Q. In what ways do you think people can be better educated on the implementation of EPIC2?

We have presented to many of our stakeholders in our capital program to discuss the topic, and now that it is an EDC initiative,  decision makers are acknowledging its value. The Federal Highway Administration is also planning on conducting workshops and peer exchanges between contractors, concrete suppliers, and other agencies like New York State DOT, which have already done this. All of these are extremely valuable.

We first heard about internally cured concrete during a peer exchange in 2021 with the New York State DOT. It was under the banner of EDC-6, and they took us out on several bridges where we noted that they have significantly reduced the typical shrinkage cracking that is common with High Performance Concrete. So that was an eye opening experience for us, and I know it would be valuable to others. The fact that it is now its own initiative in EDC-7 helps facilitate implementation.

Q. Is special training needed for contractors to work with internally cured concrete?

From our research and experience with other agencies, the finishing should not be significantly different from conventional HPC. The process at that point will be almost identical to placing traditional concrete, so there won’t be any learning curve or time spent on getting workers to learn how to deal with a new material. In fact, most contractors say that the mixture is easier to work due to improved pumpability as the material is quite smooth. I think the crucial step will be to coordinate with concrete production plants that are creating the mixes.

Figure 3. States that have implemented EPIC2 on their roads or bridges

Q. Where else has internally cured concrete been implemented?

So far it has been used in bridge decks in many states, including New York, Ohio, and North Carolina, among others. It has also been used in pavement and pavements in Kansas, Texas and Michigan.

Q. What is the future of internally cured concrete in New Jersey?

We hope these projects will be successful, and that our current crop of projects will result in some valuable lessons learned. In the long term, I believe the goal would be that all of the bridge decks would use an internally cured mixture. I can also see this being used for patching and deck repair jobs. But ultimately, the goal would be for this to become the new standard for bridge decks across the state.

Resources

Federal Highway Administration. 2023 Internally Curing Concrete Produces EPIC2 Results. https://www.fhwa.dot.gov/innovation/innovator/issue98/page_01.html

Federal Highway Administration. 2023. Enhancing Performance with Internally Cured Concrete. https://www.fhwa.dot.gov/innovation/everydaycounts/edc_7/docs/EDC-7FactsheetEPIC2.pdf

Federal Highway Administration. (2018, June). Concrete Clips: Internal Curing. https://www.youtube.com/watch?v=b6WREFmacaM

New York State DOT Standard Specifications (2021). Standard Specifications. New York State DOT. https://www.dot.ny.gov/main/business-center/engineering/specifications/busi-e-standards-usc/usc-repository/2021_9_specs_usc_vol2.pdf

National Concrete Pavement Technology Center Internal Curing Resources. (2022). Internal Curing. Iowa State University. https://cptechcenter.org/internal-curing/

Internal Curing. (2020). Oregon State University. https://engineering.oregonstate.edu/CCE/research/asphalt-materials-performance-lab/materials-research-concrete-materials/Internal-Curing

Pacheco, Jose. (2021, October). USDOT Workshop Report, Bureau of Transportation Statistics. Wisconsin Department of Transportation. https://rosap.ntl.bts.gov/view/dot/62607

Weiss, Joseph. (2015, July). Internal Curing Technical Brief. Federal Highway Administration. https://www.fhwa.dot.gov/pavement/concrete/pubs/hif16006.pdf

Did You Know? Research on ALICE and Mobility of Low-Income Households

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At the 2023 NJDOT Research Showcase, New Jersey Transportation Commissioner Diane Gutierrez-Scaccetti “appealed to attendees to advance community-centered transportation and to commit to considering the needs of ALICE (Asset Limited, Income Constrained, Employed) persons when devising research questions and in carrying out their day-to-day activities with the goal of planning, building and maintaining a more safe, equitable and sustainable transportation system.” Gutierrez-Scaccetti has repeatedly said that she “drives with ALICE” in mind, but that ALICE would rather drive by herself. On Jan. 30, 2023, Gutierrez-Scaccetti spoke at the National ALICE Summit on Navigating the ALICE Highway: A Multistate Transportation System by 2030.

In recognition of the Commissioner’s emphasis on getting to better know who ALICE is, the NJDOT Research Library has done a quick research of resources related to the mobility of low-income households and the ALICE project at The United Way. These are included below:

United Way of Northern New Jersey operates the website United for ALICE, which maintains research pages for “partner states” (28 states, including New Jersey, plus the District of Columbia). United Way of Northern New Jersey (then known as United Way of Morris County) released its first ALICE report in 2009.

United Way prepares state fact sheets that compare the ALICE Essentials Index (AEI) to the Consumer Price Index (CPI) over time.

The October 2023 NCHRP Research Results Digest, Collective and Individual Actions to Envision and Realize the Next Era of America’s Transportation Infrastructure: Phase 1, includes this background on ALICE households: “Economic growth and prosperity have not been spread evenly across the United States. About 13 percent of households earn incomes below the poverty line and an additional 29 percent are considered to be asset-limited, income-constrained, and employed (ALICE)…. The average household spends 16 percent of total expenditures on transportation—the second biggest cost after housing…. Significant numbers of Americans have limited access to health care, education, fresh food, or high-speed Internet.”

In 2018, New Jersey Governor Phil Murphy cited “more than one million [ALICE] families” in New Jersey as the impetus to raise the state’s minimum wage to $15 per hour. In 2024, New Jersey’s minimum wage will surpass $15 for the first time.

A November 2023 article from the journal Social Science & Medicine laments the fact that public health studies have not used ALICE data.

The Mackinac Center for Public Policy takes an opposite tack in its criticism. It issued a 2021 report, An Assessment of ALICE: A Misleading Measure of Poverty. “Unfortunately, United Way’s research on this issue is methodologically flawed, misleading and does not help inform the public or policymakers about how to help these households,” the authors write. The Mackinac Center for Public Policy describes itself as “a nonprofit research and educational institute that advances the principles of free markets and limited government.”

United for ALICE states that it provides “unbiased data that is replicable, easily updated on a regular basis, and sensitive to local context,” and that its published measures provide a better picture of “the number of households that are struggling in each county in a state,” compared with the Federal Poverty Level. United for ALICE’s most recent research methodology report was published in April 2023.

Transportation research on low-income individuals can be found via the TRID and ROSA-P databases.

The following are some relevant articles on the topic, curated by the NJDOT Research Library:

Current research projects into the topic of serving low-income populations include these:

Please contact the NJDOT research librarian, Eric Schwarz, MSLIS, at (609) 963-1898, or email at library@dot.nj.gov for assistance on how to expand your search to projects, or retrieve these or other publications.

NJDOT’s Research Showcase Recognized as Best Virtual Event by AASHTO Communications Committee

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The AASHTO 2023 Best Virtual Event Award recognizes a special event that is held virtually or that includes a virtual component.

AASHTO’s Committee on Transportation Communications – known as TransComm – sponsors an annual skills awards competition to promote the sharing of best practices and to recognize outstanding communications efforts. In October 2023, NJDOT Bureau of Research representatives Amanda Gendek and Pragna Shah accepted the 2023 AASHTO TransComm Skills Award in the Virtual Events Category for NJDOT’s 24th Annual Research Showcase. 

The NJDOT’s Bureau of Research Annual Research Showcase has been held since 1999 and provides an opportunity for the state’s transportation community to experience the broad scope of research initiatives and technology transfer activities conducted by their university and consultant partners. In addition to convening transportation professionals and researchers, the Showcase helps to emphasize NJDOT goals and objectives, share knowledge, and recognize the outstanding and inspiring research being done in the state.

The threat of COVID-19 transmission during the pandemic led to the Research Showcase being held fully online in 2020 and 2021. These fully virtual events resulted in a much larger audience, and even attracted attendees from other state Departments of Transportation. In 2022, as in-person events returned, the NJDOT Bureau of Research sought to find an approach that would maintain that larger audience base.

Amanda Gendek (left) and Pragna Shah (right) of the Bureau of Research with the award.

The 24th Annual Research Showcase, held October 26, 2022, was the first “hybrid” Research Showcase held by NJDOT and allowed individuals to attend the event online, while also allowing those able to gather, network and celebrate in person. Convening in a hybrid format required some additional coordination with the event planning team from Rutgers and Civic Eye Collaborative, a media consultant firm to live-stream the day’s proceedings. In total, 117 virtual participants and 190 in-person participants attended the day-long event.

Whether attending “in-person” or “virtually,” the audience heard from the keynote speaker and panelists on the major theme of the event “Advancing Equity in Transportation.” 

The Showcase theme, “Advancing Equity in Transportation” served as the organizing framework for the keynote speaker and panelists during the morning plenary session. The keynote speaker, Keith Benjamin, Associate Administrator for Highway Policy and External Affairs at the FHWA, spoke about the USDOT’s efforts to advance equity, highlighting the Infrastructure Investment and Jobs Act and the Inflation Reduction Act and various funding and program initiatives to address equity in transportation planning, project development, and other activities, among other topics. A panel session then explored the perspectives of representatives from NJDOT, county government, and transportation management associations (TMAs) who shared examples of the equity initiatives underway in their organizations. Questions and discussion invited panels to further reflect on the challenges and opportunities for advancing equity in transportation in New Jersey.  

The Showcase included afternoon breakout sessions featuring research presentations that continued to address the equity theme as well as other mobility, infrastructure, safety topics in transportation being performed by research faculty, staff, and students and NJ agencies. Several awards were also presented in recognition of research accomplishments and implemented innovations. For a full description of the 24th Annual Research Showcase event, see this recap here.

The 24th Annual Research showcase was recognized with the AASHTO Award for its efforts to enhance accessibility through the virtual platform. In addition to live-streaming the plenary and breakout sessions, the video recordings of the event were posted on NJDOT’s Tech Transfer Video Library and all those who registered were notified of its availability — whether attending in-person or online. Subsequent direct email communications and social media posts have further broadened the audience of potential viewers. To watch recordings from this, and other Research Showcase events, visit the NJDOT Tech Transfer Video Library.

The theme of the 24th Annual Research Showcase was selected in recognition of the significant Federal and state efforts underway to advance equity; Executive Order 13985 established a “whole government approach” to advancing equity and opportunity at the Federal level (left). Dr. Shawn Wilson, then-Secretary of Transportation in Louisiana, headlined a roundtable discussion, “State DOTs: Creating Pathways to Equity” at the Transportation Research Board’s 2022 Annual Meeting (right).

Research to Implementation: The Use of Porous Concrete in Sidewalks

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This Research to Implementation video presents an example of NJDOT-sponsored research and the effect such research has in addressing transportation-related issues within the State.

Pervious (or porous) concrete has been gaining popularity as a potential solution to reduce the amount of impermeable surfaces associated with sidewalks, reduce puddling, and potentially slow storm water surface runoff. As important as these benefits are to surface runoff mitigation, concerns exist as to the ability of pervious concrete to provide sufficient structural support and longevity for the expected service life of the sidewalks as well as its life cycle costs. The composition of pervious concrete can limit its mechanical strength and present challenges in its maintenance to achieve the expected service life.

With support from NJDOT’s Bureau of Research, researchers have looked at the benefits and challenges to utilizing porous concrete for sidewalks, and conducted a follow-up demonstration project. For more information about this research and the demonstration project, see: The Use of Porous Concrete for Sidewalks and Implementation of Porous Concrete for Sidewalks in New Jersey.

The Research to Implementation video series promotes the benefits of funded research to increase the safety of the traveling public, reduce costs, and increase efficiency.