The Moving Ahead for Progress in the 21st Century Act (MAP-21), the Fixing America’s Surface Transportation Act, and other current legislation promote the use of performance-based decisions to manage the Nation’s highway system (U.S. Congress 2012, 2015). MAP-21 identified seven national goal areas and established requirements for national performa
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Ram, P. V., Thompson, P. D., Pai, S., Borthakur, A., Smadi, O. G., Smith, K. L., Zimmerman, K. A., Allen, B. W., Mugabe, K., & Bektas, B. (2024). Development of Next-Generation Pavement Performance Measures and Asset Management Methodologies to Support MAP-21 Performance Management Objectives (Report No. FHWA-HRT-23-102). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure. https://rosap.ntl.bts.gov/view/dot/77583
Ram, Prashant V, Paul D. Thompson, Sandhya Pai, Abhik Borthakur, Omar G. Smadi, Kelly L. Smith, Kathryn A Zimmerman, Brad W. Allen, Kundayi Mugabe, and Basak Bektas. Development of Next-Generation Pavement Performance Measures and Asset Management Methodologies to Support MAP-21 Performance Management Objectives. Report no. FHWA-HRT-23-102. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2024. https://rosap.ntl.bts.gov/view/dot/77583.
Ram, Prashant V, et al. Development of Next-Generation Pavement Performance Measures and Asset Management Methodologies to Support MAP-21 Performance Management Objectives. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2024, Report no. FHWA-HRT-23-102, ROSA P. https://rosap.ntl.bts.gov/view/dot/77583.
This report summarizes work performed under TPF-5(299) towards developing standardized procedure for consistent measurement and analysis of faulting data within a pavement section, between different pavement sections, and between different state highway agencies (SHAs). The work was performed in two Phases. In Phase I, the research team proposed a
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Rao, S., Lee, H., Alhasan, A., & Abdualla, H. (2024). Jointed Concrete Pavement Faulting Collection and Analysis: TPF-5(299) Final Report (Report No. FHWA-RC-24-0007). United States. Federal Highway Administration. Office of Technical Services. https://rosap.ntl.bts.gov/view/dot/79839
Rao, Shreenath, Hyung Lee, Ahmad Alhasan, and Hesham Abdualla. Jointed Concrete Pavement Faulting Collection and Analysis: TPF-5(299) Final Report. Report no. FHWA-RC-24-0007. United States. Federal Highway Administration. Office of Technical Services, 2024. https://rosap.ntl.bts.gov/view/dot/79839.
Rao, Shreenath, et al. Jointed Concrete Pavement Faulting Collection and Analysis: TPF-5(299) Final Report. United States. Federal Highway Administration. Office of Technical Services, 2024, Report no. FHWA-RC-24-0007, ROSA P. https://rosap.ntl.bts.gov/view/dot/79839.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2024-09-01
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National Travel Time Dashboard: Interstate Highways
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The Monthly Urban Congestion Report (UCR) provides a state-level overview of traffic congestion and reliability trends on Interstate highways. Published every month, the report compares data from the most recent month with the same month in the previous year. It uses travel time data from the Federal Highway Administration’s National Performance Ma
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United States. Department of Transportation. Federal Highway Administration. Office of Operations (2024). National Travel Time Dashboard: Interstate Highways, September 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87938
United States. Department of Transportation. Federal Highway Administration. Office of Operations. National Travel Time Dashboard: Interstate Highways, September 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024. https://rosap.ntl.bts.gov/view/dot/87938.
United States. Department of Transportation. Federal Highway Administration. Office of Operations National Travel Time Dashboard: Interstate Highways, September 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/87938.
The Federal Highway Administration (FHWA) within the U.S. Department of Transportation has been using its cooperative driving automation (CDA) program to lead research, development, and standardization that demonstrate CDA technologies’ benefits and accelerate industry adoption and deployment. The FHWA and the Intelligent Transportation System Join
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Frye, A., Garvis, K., Leslie, E., McConnell, M., Ramyar, S., Rush, K., Bayartsengel, M., Deva, A., Smet, J., & Loughran, A. (2024). Spectrum Needs for CDA Use Cases (Report No. FHWA-HRT-24-165). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521609
Frye, Annika, Kevin Garvis, Ed Leslie, Mike McConnell, Saina Ramyar, Kyle Rush, Misheel Bayartsengel, Anish Deva, Jonathan Smet, and Andrew Loughran. Spectrum Needs for CDA Use Cases. Report no. FHWA-HRT-24-165. United States. Department of Transportation. Federal Highway Administration, 2024. https://doi.org/10.21949/1521609.
Frye, Annika, et al. Spectrum Needs for CDA Use Cases. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-165, ROSA P. https://doi.org/10.21949/1521609.
The purpose of this Primer is to apply an evaluation methodology previously developed by the Federal Highway Administration to six real-world case studies, and to provide examples for successful application of the methodology and highlight relationships to third performance management rulemaking measures. The methodology uses empirical data to trac
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Margiotta, R. A., Kocher, E., Dale, J., & Burgess, L. (2024). Influence of Operations Strategies on Third Performance Management Rulemaking (PM3) and Other Travel Time-Based Measures Primer Part Two — Nonrecurring Congestion Strategies (Report No. FHWA-HOP-23-060). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87996
Margiotta, Richard A., Eric Kocher, Jeff Dale, and Lisa Burgess. Influence of Operations Strategies on Third Performance Management Rulemaking (PM3) and Other Travel Time-Based Measures Primer Part Two — Nonrecurring Congestion Strategies. Report no. FHWA-HOP-23-060. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024. https://rosap.ntl.bts.gov/view/dot/87996.
Margiotta, Richard A., et al. Influence of Operations Strategies on Third Performance Management Rulemaking (PM3) and Other Travel Time-Based Measures Primer Part Two — Nonrecurring Congestion Strategies. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024, Report no. FHWA-HOP-23-060, ROSA P. https://rosap.ntl.bts.gov/view/dot/87996.
This case study technical report presents three examples of regionally coordinated transportation systems management and operations (TSMO) programs that highlight how the integration of traffic management systems (TMSs) and organizational coordination across participating transportation agencies may lead to increased effectiveness and optimization
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Smusz-Mengelkoch, N., Abounassif, L., Muthuswamy, S., Mitchell, D., & Hubbard, E. (2024). Regional Transportation Systems Management and Operations Case Studies (Report No. FHWA-HOP-24-017). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/80415
Smusz-Mengelkoch, Natalie, Lina Abounassif, Satya Muthuswamy, Dennis Mitchell, and Elliot Hubbard. Regional Transportation Systems Management and Operations Case Studies. Report no. FHWA-HOP-24-017. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024. https://rosap.ntl.bts.gov/view/dot/80415.
Smusz-Mengelkoch, Natalie, et al. Regional Transportation Systems Management and Operations Case Studies. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024, Report no. FHWA-HOP-24-017, ROSA P. https://rosap.ntl.bts.gov/view/dot/80415.
The overall objective of this research phase is to develop a possible stochastic methodology for quantifying the probability of bridge failure against heavy truck collisions which can result in fires and that can impact the safety of bridges. In 2021, the National Bridge Inventory (NBI) had over 618,456 bridges and culverts registered in its U.S. b
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Silva, P. F., Hamdar, S. H., Badie, S. S., Chong, C., & Chiarito, V. P. (2024). Possible Methodology for Probabilistic Assessment of Bridge Safety Against Collisions and Fires (Report No. GW-02-2024). George Washington University. Department of Civil and Environmental Engineering. https://rosap.ntl.bts.gov/view/dot/82658
Silva, Pedro F, Samer H Hamdar, Sameh S Badie, C Chong, and V. P Chiarito. Possible Methodology for Probabilistic Assessment of Bridge Safety Against Collisions and Fires. Report no. GW-02-2024. George Washington University. Department of Civil and Environmental Engineering, 2024. https://rosap.ntl.bts.gov/view/dot/82658.
Silva, Pedro F, et al. Possible Methodology for Probabilistic Assessment of Bridge Safety Against Collisions and Fires. George Washington University. Department of Civil and Environmental Engineering, 2024, Report no. GW-02-2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/82658.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2024-09-01
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Urban Congestion Report (UCR)
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The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.
United States. Department of Transportation. Federal Highway Administration. Office of Operations (2024). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87762
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024. https://rosap.ntl.bts.gov/view/dot/87762.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for July through September 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/87762.
This TechBrief summarizes the system dynamics aspects from the report, which was prepared for the Flooded Pavement Assessment project funded through FHWA Project No. DTFH61-13-C-00022. The report, in general, addresses the load-carrying capacity of pavements affected by flooding to provide decisionmakers with quantitative tools to rationally assess
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Sias, J. E., Nadkarni, A. A., Bernard, K., Jarrell, A., & Golalipour, A. (2024). The System Dynamics of Flooded Pavements [TechBrief] (Report No. FHWA-HRT-24-096). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://doi.org/10.21949/1521766
Sias, Jo E., Atish A. Nadkarni, Kathleen Bernard, Austin Jarrell, and Amir Golalipour. The System Dynamics of Flooded Pavements [TechBrief]. Report no. FHWA-HRT-24-096. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024. https://doi.org/10.21949/1521766.
Sias, Jo E., et al. The System Dynamics of Flooded Pavements [TechBrief]. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024, Report no. FHWA-HRT-24-096, ROSA P. https://doi.org/10.21949/1521766.
This report documents the results and technical performance analysis of the Pilot 1 test for the FHWA Virtual Open Innovation Collaborative Environment for Safety (VOICES) project. Pilot 1 furthered the development of tools and software used for distributed testing and added new test partners to the distributed testing community. This test expanded
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Loughran, A., Lou, Y., Laqui, R., & Chou, D. (2024). Virtual Open Innovation Collaborative Environment for Safety (VOICES) Distributed Testing Pilot Test 1 (Report No. FHWA-HRT-24-159). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://doi.org/10.21949/1521602
Loughran, Andrew, Yingyan Lou, Robin Laqui, and Danielle Chou. Virtual Open Innovation Collaborative Environment for Safety (VOICES) Distributed Testing Pilot Test 1. Report no. FHWA-HRT-24-159. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2024. https://doi.org/10.21949/1521602.
Loughran, Andrew, et al. Virtual Open Innovation Collaborative Environment for Safety (VOICES) Distributed Testing Pilot Test 1. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2024, Report no. FHWA-HRT-24-159, ROSA P. https://doi.org/10.21949/1521602.
United States. Department of Transportation. Federal Highway Administration
2024-09-01
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The systemic approach to safety prioritizes reducing systemic risk to produce a reduction in fatal and serious injury crashes. Given that high speed contributes to the likelihood of a severe crash outcome, a systemic program to reduce traffic speed is expected to reduce severe crash frequency. In this vein, the City of Pittsburgh’s Department of Mo
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United States. Department of Transportation. Federal Highway Administration (2024). Systemic Noteworthy Practice: Pittsburgh's Traffic Calming Program (Report No. FHWA-SA-24-048). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/84757
United States. Department of Transportation. Federal Highway Administration. Systemic Noteworthy Practice: Pittsburgh's Traffic Calming Program. Report no. FHWA-SA-24-048. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/84757.
United States. Department of Transportation. Federal Highway Administration Systemic Noteworthy Practice: Pittsburgh's Traffic Calming Program. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-SA-24-048, ROSA P. https://rosap.ntl.bts.gov/view/dot/84757.
This summary report explains corrosion control methods, including using flexible fillers such as petroleum-based microcrystalline wax to replace cementitious grout—an impregnation method using a silicon polymer-based corrosion inhibitor that impregnates the grout to form a barrier to moisture and oxygen upon a pressure-driven injection process—and
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Lee, S. K. (2024). Laboratory Evaluation of Five Metallic Strand Materials for Corrosion Control of Post-Tensioned Tendons: Summary of Preliminary Findings [Summary Report] (Report No. FHWA-HRT-24-158). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://doi.org/10.21949/1521601
Lee, Seung-Kyoung. Laboratory Evaluation of Five Metallic Strand Materials for Corrosion Control of Post-Tensioned Tendons: Summary of Preliminary Findings [Summary Report]. Report no. FHWA-HRT-24-158. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024. https://doi.org/10.21949/1521601.
Lee, Seung-Kyoung Laboratory Evaluation of Five Metallic Strand Materials for Corrosion Control of Post-Tensioned Tendons: Summary of Preliminary Findings [Summary Report]. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024, Report no. FHWA-HRT-24-158, ROSA P. https://doi.org/10.21949/1521601.
The use of stainless steel as concrete reinforcement has continued to gain momentum in highway construction. The main reason behind stainless steel’s popularity is its inherent corrosion resistance. However, stress corrosion cracking (SCC), normally associated with austenitic stainless steel at a high temperature (>100 ℃ (212 ℉)), can occur at a ra
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Liu, R., Runion, A., & Jalinoos, F. (2024). Exploratory Testing of Stress Corrosion Cracking in Stainless Steels at Low Temperature (Report No. FHWA-HRT-24-132). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/77581
Liu, Rongtang, Arthur Runion, and Frank Jalinoos. Exploratory Testing of Stress Corrosion Cracking in Stainless Steels at Low Temperature. Report no. FHWA-HRT-24-132. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2024. https://rosap.ntl.bts.gov/view/dot/77581.
Liu, Rongtang, et al. Exploratory Testing of Stress Corrosion Cracking in Stainless Steels at Low Temperature. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2024, Report no. FHWA-HRT-24-132, ROSA P. https://rosap.ntl.bts.gov/view/dot/77581.
To ensure public safety and to protect the capital investment in bridges over water, underwater members should be inspected to the extent necessary to determine their structural condition with certainty. Underwater inspections should also include the streambed. In shallow water, underwater inspections may be accomplished visually or tactilely from
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Dukes, M. D., Karalekas, J. M., Noel, D. W., Pope, H. K., Rowe, J. B., & Young, A. (2024). Underwater Bridge Inspection Reference Manual (Report No. FHWA-NHI-23-027). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/80426
Dukes, Michael D., James M. Karalekas, Dustin W. Noel, Heath K. Pope, Jeffrey B. Rowe, and Andrew Young. Underwater Bridge Inspection Reference Manual. Report no. FHWA-NHI-23-027. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/80426.
Dukes, Michael D., et al. Underwater Bridge Inspection Reference Manual. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-NHI-23-027, ROSA P. https://rosap.ntl.bts.gov/view/dot/80426.
United States. Department of Transportation. Federal Highway Administration
2024-09-01
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Safety Compass Newsletter
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The Federal Highway Administration’s (FHWA) Safety Compass newsletter aims to increase highway safety awareness and to provide resources to the highway safety community to help save lives. The newsletter is published three times a year, and includes articles on safety-focused offerings from FHWA, other DOT modes; our State, Local, and Tribal partne
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United States. Department of Transportation. Federal Highway Administration (2024). Safety Compass Newsletter [Fall 2024: Volume 18, Issue 3]. United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/78913
United States. Department of Transportation. Federal Highway Administration. Safety Compass Newsletter [Fall 2024: Volume 18, Issue 3]. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2024. https://rosap.ntl.bts.gov/view/dot/78913.
United States. Department of Transportation. Federal Highway Administration Safety Compass Newsletter [Fall 2024: Volume 18, Issue 3]. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/78913.
United States. Department of Transportation. Federal Highway Administration
2024-09-01
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Welcome to the Transportation Pooled Fund (TPF) Quarterly Update. This update shares the latest information on the TPF Program including highlights, resources, announcements, open solicitations, and active studies. The TPF program creates an opportunity for partners to pool their funds, subject matter expertise, and resources to conduct high-priori
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United States. Department of Transportation. Federal Highway Administration (2024). Transportation Pooled Fund Quarterly Update [September 2024] (Report No. FHWA-HRT-24-170). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521614
United States. Department of Transportation. Federal Highway Administration. Transportation Pooled Fund Quarterly Update [September 2024]. Report no. FHWA-HRT-24-170. United States. Department of Transportation. Federal Highway Administration, 2024. https://doi.org/10.21949/1521614.
United States. Department of Transportation. Federal Highway Administration Transportation Pooled Fund Quarterly Update [September 2024]. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-170, ROSA P. https://doi.org/10.21949/1521614.
United States. Department of Transportation. Federal Highway Administration
2024-09-01
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This fact sheet highlights an overview of the Annual Performance Expenditure Report (APER), that is required of each State Department of Transportation (DOT). It is to be submitted to the local Federal Highway Administration (FHWA) division office, per 23 Code of Federal Regulations (CFR). An APER assists both the State DOTs and FHWA division offic
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United States. Department of Transportation. Federal Highway Administration (2024). Annual Performance Expenditure Report (APER) (Report No. FHWA-HRT-24-160). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521603
United States. Department of Transportation. Federal Highway Administration. Annual Performance Expenditure Report (APER). Report no. FHWA-HRT-24-160. United States. Department of Transportation. Federal Highway Administration, 2024. https://doi.org/10.21949/1521603.
United States. Department of Transportation. Federal Highway Administration Annual Performance Expenditure Report (APER). United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-160, ROSA P. https://doi.org/10.21949/1521603.
Standardizing e-Construction: A Pilot Project in Lincoln, Nebraska - Celebrating Innovationand Collaboration: Debut of the TPF Excellence Awards - From Farm to Market: The Data Challenges of Rural Roads - Accelerating U.S. Innovation: Bringing Global Innovations to U.S. Highways - Reentry Workforce Training Pilot Programs for Incarcerated Individua
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Burklund, L., Rosso, M., Sergeson, P., Bergeron, Z. T., York, M., Pandey, B., Reimnitz, A., Maier, H., & Kirk, A. (2024). Public Roads Vol. 88 No. 3 (Autumn 2024) (Report No. FHWA-HRT-25-001). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/79842
Burklund, Lonnie, Marc Rosso, Patricia Sergeson, Zachary T. Bergeron, Michael York, Birat Pandey, Amber Reimnitz, Hana Maier, and Andrea Kirk. Public Roads Vol. 88 No. 3 (Autumn 2024). Report no. FHWA-HRT-25-001. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024. https://rosap.ntl.bts.gov/view/dot/79842.
Burklund, Lonnie, et al. Public Roads Vol. 88 No. 3 (Autumn 2024). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024, Report no. FHWA-HRT-25-001, ROSA P. https://rosap.ntl.bts.gov/view/dot/79842.
This Technical Brief summarizes products of a cooperative agreement on accelerated implementation and deployment of asphalt pavement techniques and the number of times they were uniquely accessed by stakeholders prior to publication of the Technical Brief.
Hand, A. J., Aschenbrener, T., Von Quintas, H., & Gopisetti, P. (2024). Accelerated Implementation and Deployment of Asphalt Pavement Technologies Featured Products [Tech Brief] (Report No. FHWA-HIF-24-095). United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements. https://rosap.ntl.bts.gov/view/dot/89849
Hand, Adam J, Tim Aschenbrener, Harold Von Quintas, and Praveen Gopisetti. Accelerated Implementation and Deployment of Asphalt Pavement Technologies Featured Products [Tech Brief]. Report no. FHWA-HIF-24-095. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2024. https://rosap.ntl.bts.gov/view/dot/89849.
Hand, Adam J, et al. Accelerated Implementation and Deployment of Asphalt Pavement Technologies Featured Products [Tech Brief]. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2024, Report no. FHWA-HIF-24-095, ROSA P. https://rosap.ntl.bts.gov/view/dot/89849.
The Guide for Maintaining Active Transportation Infrastructure for Enhanced Safety addresses maintenance of active transportation facilities for achieving mobility, accessibility, safety, and equity goals. The Guide presents a case for maintaining active transportation facilities as an integral component of a Complete Streets approach and discusses
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Damaske, T., Goodman, D., Gulaid, S., Hintze, M., Kelly, Q., Shapiro, J., Stein, J., Tailor, A., Wong, T., Gade, H., & Goughnour, E. (2024). Guide for Maintaining Active Transportation Infrastructure for Enhanced Safety (Report No. FHWA-SA-23-005). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/91879
Damaske, Teresa, Dan Goodman, Sofia Gulaid, Michael Hintze, Quinn Kelly, Julie Shapiro, and Jacob Stein, et al.. Guide for Maintaining Active Transportation Infrastructure for Enhanced Safety. Report no. FHWA-SA-23-005. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2024. https://rosap.ntl.bts.gov/view/dot/91879.
Damaske, Teresa, et al. Guide for Maintaining Active Transportation Infrastructure for Enhanced Safety. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2024, Report no. FHWA-SA-23-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/91879.
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