There are approximately 615,000 bridges in the United States. Many of these bridges serve as critical parts of the transportation network locally, regionally and nationwide, and are essential for transportation of goods and people before, during and after extreme natural hazards. This report presents a detailed study on engineering post-hazard asse
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Jalinoos, F., Agrawal, A. K., Brooks, C. N., Amjadian, M., Banach, D. M., Boren, E., Dobson, R. J., & Ahlborn, T. M. (2019). Post-Hazard Engineering Assessment of Highway Structures using Remote Sensing Technologies (Report No. FHWA-HIF-20-004). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/50530
Jalinoos, Frank, Anil K. Agrawal, Colin N. Brooks, M. Amjadian, David M. Banach, E.J. Boren, Richard J. Dobson, and Theresa M. Ahlborn. Post-Hazard Engineering Assessment of Highway Structures using Remote Sensing Technologies. Report no. FHWA-HIF-20-004. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2019. https://rosap.ntl.bts.gov/view/dot/50530.
Jalinoos, Frank, et al. Post-Hazard Engineering Assessment of Highway Structures using Remote Sensing Technologies. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2019, Report no. FHWA-HIF-20-004, ROSA P. https://rosap.ntl.bts.gov/view/dot/50530.
The Federal Highway Administration (FHWA) organized a pooled fund study of 40 States to evaluate low-cost safety strategies as part of its strategic highway safety effort. The purpose of the FHWA Evaluation of Low-Cost Safety Improvements Pooled Fund Study is to evaluate the safety effectiveness of high-priority, low-cost safety strategies through
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Srinivasan, R., Lan, B., Carter, D., Smith, S., Signor, K., & Persaud, B. (2019). Safety Evaluation of Pedestrian Countdown Signals [techbrief] (Report No. FHWA-HRT-19-046). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/50532
Srinivasan, Raghavan, Bo Lan, Daniel Carter, Sarah Smith, Kari Signor, and Bhagwant Persaud. Safety Evaluation of Pedestrian Countdown Signals [techbrief]. Report no. FHWA-HRT-19-046. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2019. https://rosap.ntl.bts.gov/view/dot/50532.
Srinivasan, Raghavan, et al. Safety Evaluation of Pedestrian Countdown Signals [techbrief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2019, Report no. FHWA-HRT-19-046, ROSA P. https://rosap.ntl.bts.gov/view/dot/50532.
Proven uses for small unmanned aerial systems (UAS) include structural inspections (bridge, high mast lighting, confined space, retaining walls, and tunnels), construction inspections (surveying, routing, quantities, project scoping, and work zone traffic monitoring), and emergency response (flooding events, wind events, landslides, mudslides, volc
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Tritsch, S. L. (2019). Unmanned Aerial Systems Peer Exchange, Grand Forks, North Dakota [techbrief] (Report No. FHWA-HIF-20-026). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/43619
Tritsch, Steven L.. Unmanned Aerial Systems Peer Exchange, Grand Forks, North Dakota [techbrief]. Report no. FHWA-HIF-20-026. United States. Federal Highway Administration, 2019. https://rosap.ntl.bts.gov/view/dot/43619.
Tritsch, Steven L. Unmanned Aerial Systems Peer Exchange, Grand Forks, North Dakota [techbrief]. United States. Federal Highway Administration, 2019, Report no. FHWA-HIF-20-026, ROSA P. https://rosap.ntl.bts.gov/view/dot/43619.
This report introduces the fundamentals of Artificial Intelligence (AI) technologies and potential areas of AI applications in Transportation Management Center (TMC) operations; documents successful AI applications and lessons learned in TMC operations; showcases TMCs using AI to improve their operations; and identifies needs for future studies on
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Gettman, D. (2019). Raising Awareness of Artificial Intelligence for Transportation Systems Management and Operations (Report No. FHWA-HOP-19-052). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/44201
Gettman, Douglas. Raising Awareness of Artificial Intelligence for Transportation Systems Management and Operations. Report no. FHWA-HOP-19-052. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2019. https://rosap.ntl.bts.gov/view/dot/44201.
Gettman, Douglas Raising Awareness of Artificial Intelligence for Transportation Systems Management and Operations. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2019, Report no. FHWA-HOP-19-052, ROSA P. https://rosap.ntl.bts.gov/view/dot/44201.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2019-12-01
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Unforeseen needs often arise during the construction phase of a project. These needs may result in expensive and time-intensive change orders. By developing a safety contingency line item as part of the project estimate phase, TxDOT can address and mitigate numerous challenges during active operations. As a result, the State has seen a significant
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United States. Department of Transportation. Federal Highway Administration. Office of Operations (2019). Using Safety Contingency Funding to Address Unforeseen Safety Needs During Construction in Texas — Factsheet (Report No. FHWA-HOP-20-009). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/44397
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Using Safety Contingency Funding to Address Unforeseen Safety Needs During Construction in Texas — Factsheet. Report no. FHWA-HOP-20-009. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2019. https://rosap.ntl.bts.gov/view/dot/44397.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Using Safety Contingency Funding to Address Unforeseen Safety Needs During Construction in Texas — Factsheet. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2019, Report no. FHWA-HOP-20-009, ROSA P. https://rosap.ntl.bts.gov/view/dot/44397.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2019-12-01
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Public Roads
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Public Roads is the quarterly magazine of the Federal Highway Administration (FHWA). Reading Public Roads is the easiest way to keep up-to-date on developments in federal highway policies, programs, and research and technology. More specifically, the magazine "covers" advances and innovations in highway/traffic research and technology, critical nat
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2019). Public Roads: Winter 2020 (Report No. FHWA-HRT-20-002). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/49179
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. Public Roads: Winter 2020. Report no. FHWA-HRT-20-002. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2019. https://rosap.ntl.bts.gov/view/dot/49179.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Public Roads: Winter 2020. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2019, Report no. FHWA-HRT-20-002, ROSA P. https://rosap.ntl.bts.gov/view/dot/49179.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2019-12-01
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Analysis of statewide crash data often shows a significant portion of fatalities and serious injuries occurring on locally owned roadways. To achieve the long-term goal and vision of zero fatalities on our nation’s roadways, States should consider safety improvements on the local system. States use local road safety programs to supplement State roa
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United States. Department of Transportation. Federal Highway Administration. Office of Safety (2019). Local Road Safety: A Framework for Local Safety Programs and Policies (Report No. FHWA-SA-20-003). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/55637
United States. Department of Transportation. Federal Highway Administration. Office of Safety. Local Road Safety: A Framework for Local Safety Programs and Policies. Report no. FHWA-SA-20-003. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2019. https://rosap.ntl.bts.gov/view/dot/55637.
United States. Department of Transportation. Federal Highway Administration. Office of Safety Local Road Safety: A Framework for Local Safety Programs and Policies. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2019, Report no. FHWA-SA-20-003, ROSA P. https://rosap.ntl.bts.gov/view/dot/55637.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2019-12-01
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Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2019). Traffic Volume Trends: December 2019. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/50072
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: December 2019. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2019. https://rosap.ntl.bts.gov/view/dot/50072.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: December 2019. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2019, ROSA P. https://rosap.ntl.bts.gov/view/dot/50072.
Seven years ago, the Alaska Transportation Working Group published its first-ever long-range transportation plan for Federal lands in Alaska, the 2012 Alaska Federal Lands Long Range Transportation Plan (LRTP). This plan was a collaboration between a wide range of partners – the Bureau of Land Management, National Park Service, U.S. Fish and Wildli
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Supporting Files
Alaska Transportation Working Group (2019). Alaska Federal Lands Collaborative Long-Range Transportation Plan, 2020-2040. Alaska Transportation Working Group. https://doi.org/10.21949/1529369
Alaska Transportation Working Group. Alaska Federal Lands Collaborative Long-Range Transportation Plan, 2020-2040. Alaska Transportation Working Group, 2019. https://doi.org/10.21949/1529369.
Alaska Transportation Working Group Alaska Federal Lands Collaborative Long-Range Transportation Plan, 2020-2040. Alaska Transportation Working Group, 2019, ROSA P. https://doi.org/10.21949/1529369.
Five portland cement concrete (PCC) and five asphalt concrete (AC) pavement locations at each of seven field testing sites in the central and eastern United States represented a range of aggregate types, pavement surface ages, and climates. Albedo, thermal properties, and pavement surface characteristics data were collected, and cores were obtained
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Alleman, J., & Heitzman, M. (2019). Quantifying Pavement Albedo (Report No. NCAT Report 19-09). Iowa State University. National Concrete Pavement Technology Center. https://rosap.ntl.bts.gov/view/dot/62003
Alleman, James and Michael Heitzman. Quantifying Pavement Albedo. Report no. NCAT Report 19-09. Iowa State University. National Concrete Pavement Technology Center, 2019. https://rosap.ntl.bts.gov/view/dot/62003.
Alleman, James, and Michael Heitzman Quantifying Pavement Albedo. Iowa State University. National Concrete Pavement Technology Center, 2019, Report no. NCAT Report 19-09, ROSA P. https://rosap.ntl.bts.gov/view/dot/62003.
This report summarizes the presentations, activities, and discussions that took place during the Federal Highway Administration (FHWA) Virtual Public Involvement (VPI) Workshop held in Honolulu, Hawaii, on December 10-11, 2019. The purpose of the workshop was to provide the Hawaii Department of Transportation (DOT), metropolitan planning organizati
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Crayton, T. (2019). Virtual Public Involvement Technical Assistance Workshop Summary Report: Honolulu, Hawaii (Report No. FHWA-HEP-20-026). United States. Department of Transportation. Federal Highway Administration. Office of Planning. https://rosap.ntl.bts.gov/view/dot/92517
Crayton, Travis. Virtual Public Involvement Technical Assistance Workshop Summary Report: Honolulu, Hawaii. Report no. FHWA-HEP-20-026. United States. Department of Transportation. Federal Highway Administration. Office of Planning, 2019. https://rosap.ntl.bts.gov/view/dot/92517.
Crayton, Travis Virtual Public Involvement Technical Assistance Workshop Summary Report: Honolulu, Hawaii. United States. Department of Transportation. Federal Highway Administration. Office of Planning, 2019, Report no. FHWA-HEP-20-026, ROSA P. https://rosap.ntl.bts.gov/view/dot/92517.
United States. Department of Transportation. Federal Highway Administration
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2019-11-21
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Conditions and Performance Report to Congress
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This document is intended to provide decision makers with an objective appraisal of the physical conditions, operational performance, and financing mechanisms of highways, bridges, and transit systems based on both their current state and their projected future state under a set of alternative future investment scenarios. It consolidates conditions
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United States. Department of Transportation. Federal Highway Administration, & United States. Department of Transportation. Federal Transit Administration (2019). Status of the Nation's Highways, Bridges, and Transit: Conditions and Performance Report to Congress (23rd Edition) (Report No. FHWA-PL-20-001). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/43598
United States. Department of Transportation. Federal Highway Administration and United States. Department of Transportation. Federal Transit Administration. Status of the Nation's Highways, Bridges, and Transit: Conditions and Performance Report to Congress (23rd Edition). Report no. FHWA-PL-20-001. United States. Department of Transportation. Federal Highway Administration, 2019. https://rosap.ntl.bts.gov/view/dot/43598.
United States. Department of Transportation. Federal Highway Administration, et al. Status of the Nation's Highways, Bridges, and Transit: Conditions and Performance Report to Congress (23rd Edition). United States. Department of Transportation. Federal Highway Administration, 2019, Report no. FHWA-PL-20-001, ROSA P. https://rosap.ntl.bts.gov/view/dot/43598.
TRX developed a NEON® Smart Wayfinding and Navigation (SWaN) service that delivers the underlying location and routing capabilities required to allow application developers to provide travelers with real-time location and en-route assistance and situational awareness, including within complex urban transport structures. These core indoor location a
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Politi, C., Teolis, C., Young, T., Blaszak, S., & Bracht, J. (2019). Smart Wayfinding and Navigation System Using High Accuracy 3D Location Technology, Final Report (Report No. FHWA-JPO-19-771). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/44056
Politi, Carol, Carole Teolis, Travis Young, Sarah Blaszak, and Jay Bracht. Smart Wayfinding and Navigation System Using High Accuracy 3D Location Technology, Final Report. Report no. FHWA-JPO-19-771. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2019. https://rosap.ntl.bts.gov/view/dot/44056.
Politi, Carol, et al. Smart Wayfinding and Navigation System Using High Accuracy 3D Location Technology, Final Report. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2019, Report no. FHWA-JPO-19-771, ROSA P. https://rosap.ntl.bts.gov/view/dot/44056.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2019-11-14
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This digest shares the latest information from a range of Federal and non-Federal sources, addressing transportation and its relationship to the human environment. Through this information exchange, FHWA hopes to foster dialogue at all levels and continue to further the state of the practice on these important topics in support of safety; infrastru
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United States. Federal Highway Administration. Office of Planning, Environment, and Realty (2019). Human Environment Digest: November 14, 2019. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/54983
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: November 14, 2019. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2019. https://rosap.ntl.bts.gov/view/dot/54983.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: November 14, 2019. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2019, ROSA P. https://rosap.ntl.bts.gov/view/dot/54983.
Black Hawk County Metropolitan Area in Northeast Iowa has a population of 123,521, along with an extensive regional trail network with upwards of 115 miles of trails and more planned for construction. However, the trail system was hard to navigate, and thus not being fully used by visitors and residents. Local communities and the region's associati
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United States. Federal Highway Administration (2019). Regional Trail Network Wayfinding Signage Enhancements in Black Hawk County, Iowa (Report No. FHWA-HEP-20-005). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/62877
United States. Federal Highway Administration. Regional Trail Network Wayfinding Signage Enhancements in Black Hawk County, Iowa. Report no. FHWA-HEP-20-005. United States. Federal Highway Administration, 2019. https://rosap.ntl.bts.gov/view/dot/62877.
United States. Federal Highway Administration Regional Trail Network Wayfinding Signage Enhancements in Black Hawk County, Iowa. United States. Federal Highway Administration, 2019, Report no. FHWA-HEP-20-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/62877.
This paper explores the public’s outlook on automated vehicles, focusing specifically on attitudes regarding safety, trust, and willingness to try, as well as the factors that influence those opinions. It compiles the results of numerous surveys and studies conducted over the past four years and tracks consumer attitudes over time, against the back
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Hassol, J., Perlman, D., Chajka-Cadin, L., & Shaw, J. (2019). Understanding Surveys of Public Sentiment Regarding Automated Vehicles: Summary of Results to Date and Implications of Past Research on the Dynamics of Consumer Adoption (Report No. DOT-VNTSC-FHWA-20-03). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/43628
Hassol, Joshua, David Perlman, Lora Chajka-Cadin, and Jingsi Shaw. Understanding Surveys of Public Sentiment Regarding Automated Vehicles: Summary of Results to Date and Implications of Past Research on the Dynamics of Consumer Adoption. Report no. DOT-VNTSC-FHWA-20-03. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2019. https://rosap.ntl.bts.gov/view/dot/43628.
Hassol, Joshua, et al. Understanding Surveys of Public Sentiment Regarding Automated Vehicles: Summary of Results to Date and Implications of Past Research on the Dynamics of Consumer Adoption. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2019, Report no. DOT-VNTSC-FHWA-20-03, ROSA P. https://rosap.ntl.bts.gov/view/dot/43628.
The Federal Highway Administration's Long-Term Pavement Performance (LTPP) program issues a triannual newsletter to inform you about the progress and activities of the program. Brief updates on progress in important program activities are provided, including data collection, data releases, new products and publications, pooled fund studies, and dat
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United States. Federal Highway Administration (2019). LTPP Newsletter - Fall Issue - November 2019 (Report No. FHWA-HRT-20-027). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/43867
United States. Federal Highway Administration. LTPP Newsletter - Fall Issue - November 2019. Report no. FHWA-HRT-20-027. United States. Federal Highway Administration, 2019. https://rosap.ntl.bts.gov/view/dot/43867.
United States. Federal Highway Administration LTPP Newsletter - Fall Issue - November 2019. United States. Federal Highway Administration, 2019, Report no. FHWA-HRT-20-027, ROSA P. https://rosap.ntl.bts.gov/view/dot/43867.
Researchers at California Partners for Advanced Transportation Technology (PATH), a research and development program at the University of California-Berkeley, studied the potential benefits of cooperative adaptive cruise control (CACC) by deploying the technology in a platoon of three trucks. They built the CACC system and implemented it in three l
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Shladover, S. E., Lu, X. Y., Yang, S., Ramezani, H., Spring, J., Nowakowski, C., Nelson, D., Thompson, D., Kailas, A., McAuliffe, B., & Glover, K. D. (2019). Partial Automation for Truck Platooning (Report No. FHWA-HRT-19-028). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/48739
Shladover, Steven E., Xiao-Yun Lu, Shiyan Yang, Hani Ramezani, John Spring, Christopher Nowakowski, and David Nelson, et al.. Partial Automation for Truck Platooning. Report no. FHWA-HRT-19-028. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2019. https://rosap.ntl.bts.gov/view/dot/48739.
Shladover, Steven E., et al. Partial Automation for Truck Platooning. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2019, Report no. FHWA-HRT-19-028, ROSA P. https://rosap.ntl.bts.gov/view/dot/48739.
The Federal Highway Administration (FHWA) organized 40 States to participate in the FHWA Evaluation of Low-Cost Safety Improvements Pooled Fund Study as part of its strategic highway safety plan support effort. The purpose of the study was to evaluate the safety effectiveness of low-cost safety improvement strategies through scientifically rigorous
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Donnell, E. T., Wood, J., & Eccles, K. A. (2019). Safety Evaluation of Continuous Green T Intersections [techbrief] (Report No. FHWA-HRT-19-032). United States. Federal Highway Administration. Office of Research and Development. https://rosap.ntl.bts.gov/view/dot/42729
Donnell, Eric T., Jonathan Wood, and Kimberly A. Eccles. Safety Evaluation of Continuous Green T Intersections [techbrief]. Report no. FHWA-HRT-19-032. United States. Federal Highway Administration. Office of Research and Development, 2019. https://rosap.ntl.bts.gov/view/dot/42729.
Donnell, Eric T., et al. Safety Evaluation of Continuous Green T Intersections [techbrief]. United States. Federal Highway Administration. Office of Research and Development, 2019, Report no. FHWA-HRT-19-032, ROSA P. https://rosap.ntl.bts.gov/view/dot/42729.
United States. Federal Highway Administration. Office of Natural Environment
2019-11-01
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This brief newsletter each month keeps transportation stakeholders up-to-date on various issues related to transportation and climate change.
United States. Federal Highway Administration. Office of Natural Environment (2019). Air Quality and Sustainable Transportation Highlights: November/December 2019 (Report No. FHWA-HEP-20-018). United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment. https://rosap.ntl.bts.gov/view/dot/49115
United States. Federal Highway Administration. Office of Natural Environment. Air Quality and Sustainable Transportation Highlights: November/December 2019. Report no. FHWA-HEP-20-018. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2019. https://rosap.ntl.bts.gov/view/dot/49115.
United States. Federal Highway Administration. Office of Natural Environment Air Quality and Sustainable Transportation Highlights: November/December 2019. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2019, Report no. FHWA-HEP-20-018, ROSA P. https://rosap.ntl.bts.gov/view/dot/49115.
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