Traditional traffic monitoring sensors on roadways provide valuable information about travel demands and patterns. However, they do not capture detailed data on how vehicles are driven and interact with the road and the environment. To address this gap, the Office of Highway Policy Information in the FHWA has explored connected vehicle (CV) data fr
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Wang, S., Tang, T., Brotsos, B., & Winter, D. (2024). Post-event Connected Vehicle Data Exploration - Lessons Learned (Report No. FHWA-HPL-24-012). United States. Federal Highway Administration. Office of Policy and Governmental Affairs. https://rosap.ntl.bts.gov/view/dot/74427
Wang, Shuqing, Tianjia Tang, Brian Brotsos, and David Winter. Post-event Connected Vehicle Data Exploration - Lessons Learned. Report no. FHWA-HPL-24-012. United States. Federal Highway Administration. Office of Policy and Governmental Affairs, 2024. https://rosap.ntl.bts.gov/view/dot/74427.
Wang, Shuqing, et al. Post-event Connected Vehicle Data Exploration - Lessons Learned. United States. Federal Highway Administration. Office of Policy and Governmental Affairs, 2024, Report no. FHWA-HPL-24-012, ROSA P. https://rosap.ntl.bts.gov/view/dot/74427.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-04-01
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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 (2024). Traffic Volume Trends: April 2024. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/74842
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: April 2024. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2024. https://rosap.ntl.bts.gov/view/dot/74842.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: April 2024. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/74842.
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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This fact sheet highlights the emerging In-Situ Scour Testing Device (ISTD) technology, that uses an innovative erosion head that more accurately measures soil erosion resistance, resulting in more cost-effective foundation designs and greater reliability and resiliency in bridge performance.
United States. Department of Transportation. Federal Highway Administration (2024). In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Scarborough, ME (Report No. FHWA-HRT-24-106). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/74541
United States. Department of Transportation. Federal Highway Administration. In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Scarborough, ME. Report no. FHWA-HRT-24-106. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/74541.
United States. Department of Transportation. Federal Highway Administration In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Scarborough, ME. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-106, ROSA P. https://rosap.ntl.bts.gov/view/dot/74541.
This summary report highlights the purpose of the workshop was to identify the maturity, piloting techniques, and lessons from deployments of novel data collection and modeling methods in managing roadway flood hazards. Organizers wanted participants to learn how to leverage engineering, computer and climate science, and social science expertise fo
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Leung, D., & Mockett, M. (2024). Innovative Methods to Detect and Measure Flooded Roadways (Report No. FHWA-HRT-24-006). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521787
Leung, Douglas and Mark Mockett. Innovative Methods to Detect and Measure Flooded Roadways. Report no. FHWA-HRT-24-006. United States. Department of Transportation. Federal Highway Administration, 2024. https://doi.org/10.21949/1521787.
Leung, Douglas, and Mark Mockett Innovative Methods to Detect and Measure Flooded Roadways. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-006, ROSA P. https://doi.org/10.21949/1521787.
This report aids public agencies in planning and assessing their traffic management system (TMS) to gain insight into their capabilities, performance, and potential areas for enhancements. The report provides information about opportunities to integrate existing TMS capabilities, performance, resources needed for improvements, and resources needed
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Khijniak, D., Lukasik, D., MacAdam, J., & Sanchez, R. (2024). Assessing and Reporting on Traffic Management System (TMS) Capabilities and Performance—Current Practices (Report No. FHWA-HRT-24-099). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://rosap.ntl.bts.gov/view/dot/74272
Khijniak, Dmitri, Dan Lukasik, John MacAdam, and Robert Sanchez. Assessing and Reporting on Traffic Management System (TMS) Capabilities and Performance—Current Practices. Report no. FHWA-HRT-24-099. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2024. https://rosap.ntl.bts.gov/view/dot/74272.
Khijniak, Dmitri, et al. Assessing and Reporting on Traffic Management System (TMS) Capabilities and Performance—Current Practices. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2024, Report no. FHWA-HRT-24-099, ROSA P. https://rosap.ntl.bts.gov/view/dot/74272.
The purpose of this Primer is to orient transportation practitioners to the principles and practices of Operations Performance Measures and Management (OPMM). OPMM aims to support continuous improvement in the practice of Transportation Systems Management and Operations (TSMO), a set of strategies that focus on operational strategies that improve t
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Margiotta, R. A., Hallenbeck, M. E., Lindsey, C., & Motamed, M. (2024). Operation Performance Management Primer: From Performance Measures to Performance Management (Report No. FHWA-HOP-24-005). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/74452
Margiotta, Richard A., Mark E. Hallenbeck, Christopher Lindsey, and Moggan Motamed. Operation Performance Management Primer: From Performance Measures to Performance Management. Report no. FHWA-HOP-24-005. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024. https://rosap.ntl.bts.gov/view/dot/74452.
Margiotta, Richard A., et al. Operation Performance Management Primer: From Performance Measures to Performance Management. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024, Report no. FHWA-HOP-24-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/74452.
This Tech Brief focuses on Paver Mounted Thermal Profile (PMTP) systems, Intelligent Compaction (IC), Dielectric Profiling Systems (DPS), and Veta software. The intent of this tech brief is to summarize these technologies, their capabilities, shortfalls, and appropriate usage at the present time to support QA while also meeting the Title 23 Code of
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Chang, G. K., Sankaranarayanan, S., & Gilliland, A. (2024). NDT and ICT for Asphalt Pavement Construction [Tech Brief] (Report No. FHWA-HIF-24-031). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/78767
Chang, George K., Subramanian Sankaranarayanan, and Amanda Gilliland. NDT and ICT for Asphalt Pavement Construction [Tech Brief]. Report no. FHWA-HIF-24-031. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/78767.
Chang, George K., et al. NDT and ICT for Asphalt Pavement Construction [Tech Brief]. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HIF-24-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/78767.
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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Minnesota Department of Transportation’s (MnDOT’s) Digital As-Builts (DABs) journey started over a decade ago. Since then, MnDOT has developed a strategic plan to improve asset data that uses DABs as one important data source. Construction data is essential in managing transportation assets. Asset type, material, location, cost, material testing re
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United States. Department of Transportation. Federal Highway Administration (2024). Digital As-Builts at Minnesota Department of Transportation (Report No. FHWA-RC-24-0003). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/75882
United States. Department of Transportation. Federal Highway Administration. Digital As-Builts at Minnesota Department of Transportation. Report no. FHWA-RC-24-0003. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/75882.
United States. Department of Transportation. Federal Highway Administration Digital As-Builts at Minnesota Department of Transportation. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-RC-24-0003, ROSA P. https://rosap.ntl.bts.gov/view/dot/75882.
The purpose of this Tech Brief is to present random sampling practices and describe sample security measures for construction materials. The document is intended for highway agency and contractor engineers.
Cavalline, T. L., & Mawdsley, R. (2024). Quality Assurance Random Sampling and Sample Security [Tech Brief] (Report No. FHWA-HIF-24-022). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/77867
Cavalline, Tara L and Randall Mawdsley. Quality Assurance Random Sampling and Sample Security [Tech Brief]. Report no. FHWA-HIF-24-022. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/77867.
Cavalline, Tara L, and Randall Mawdsley Quality Assurance Random Sampling and Sample Security [Tech Brief]. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HIF-24-022, ROSA P. https://rosap.ntl.bts.gov/view/dot/77867.
This report provides an overview of issues and topics to consider when transitioning from a current traffic management system (TMS) to a new version, replacing a current TMS with a new one, replacing a subsystem of a TMS, or adding new subsystems or capabilities to an existing TMS. The report outlines the types of technical and nontechnical conside
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Gettman, D., Johnson, B., & Marecek, A. (2024). Transitioning Between Versions of Traffic Management Systems or Subsystems (Report No. FHWA-HRT-24-110). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://rosap.ntl.bts.gov/view/dot/74234
Gettman, Douglas, Britton Johnson, and Alice Marecek. Transitioning Between Versions of Traffic Management Systems or Subsystems. Report no. FHWA-HRT-24-110. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2024. https://rosap.ntl.bts.gov/view/dot/74234.
Gettman, Douglas, et al. Transitioning Between Versions of Traffic Management Systems or Subsystems. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2024, Report no. FHWA-HRT-24-110, ROSA P. https://rosap.ntl.bts.gov/view/dot/74234.
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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This fact sheet highlights the emerging in-situ scour testing device (ISTD) technology which uses an innovative erosion head that more accurately measures soil erosion resistance, resulting in cost-effective foundation designs and increased reliability and resiliency in bridge performance.
United States. Department of Transportation. Federal Highway Administration (2024). In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Butte City, CA (Report No. FHWA-HRT-24-105). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/74545
United States. Department of Transportation. Federal Highway Administration. In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Butte City, CA. Report no. FHWA-HRT-24-105. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/74545.
United States. Department of Transportation. Federal Highway Administration In-Situ Scour Testing Device (ISTD), State Demonstrations of Field Soil Tests, Butte City, CA. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-105, ROSA P. https://rosap.ntl.bts.gov/view/dot/74545.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2024-04-01
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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, April 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87931
United States. Department of Transportation. Federal Highway Administration. Office of Operations. National Travel Time Dashboard: Interstate Highways, April 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024. https://rosap.ntl.bts.gov/view/dot/87931.
United States. Department of Transportation. Federal Highway Administration. Office of Operations National Travel Time Dashboard: Interstate Highways, April 2024. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/87931.
This document is a technical summary of the Georgia Institute of Technology report, Evaluation of LargeFormat Metallic Additive Manufacturing (AM) for Steel Bridge Applications: Final Report of Tensile, Impact, and Fatigue Testing Results (GT-SEMM-23-01), available at https://rosap.ntl.bts.gov/view/dot/72366[1]. This report is a deliverable from a
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Sherman, R. J., Kessler, H. D., Frank, K. H., & Medlock, R. (2024). Evaluation of Large-Format Metallic Additive Manufacturing (AM) for Steel Bridge Applications [Tech Brief] (Report No. FHWA-HIF-24-008). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/75895
Sherman, Ryan J., Hannah D Kessler, Karl H. Frank, and Ronnie Medlock. Evaluation of Large-Format Metallic Additive Manufacturing (AM) for Steel Bridge Applications [Tech Brief]. Report no. FHWA-HIF-24-008. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/75895.
Sherman, Ryan J., et al. Evaluation of Large-Format Metallic Additive Manufacturing (AM) for Steel Bridge Applications [Tech Brief]. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HIF-24-008, ROSA P. https://rosap.ntl.bts.gov/view/dot/75895.
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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Every Day Counts (EDC) is the Federal Highway Administration’s (FHWA's) program to advance a culture of innovation in the transportation community in partnership with public and private stakeholders. Through this State-based effort, FHWA coordinates rapid deployment of proven strategies and technologies to shorten the project delivery process, enha
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United States. Department of Transportation. Federal Highway Administration (2024). Every Day Counts: Innovation for a Nation on the Move - EDC-7 Progress Report #1, April 2024 (Report No. FHWA-24-CAI-005). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/87506
United States. Department of Transportation. Federal Highway Administration. Every Day Counts: Innovation for a Nation on the Move - EDC-7 Progress Report #1, April 2024. Report no. FHWA-24-CAI-005. United States. Department of Transportation. Federal Highway Administration, 2024. https://rosap.ntl.bts.gov/view/dot/87506.
United States. Department of Transportation. Federal Highway Administration Every Day Counts: Innovation for a Nation on the Move - EDC-7 Progress Report #1, April 2024. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-24-CAI-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/87506.
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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This fact sheet highlights the comprehensive plan which embraces the Safe System Approach. This includes five elements that need to be addressed to achieve zero traffic deaths: safe road users, safe vehicles, safe speeds, safe roads, and post-crash care. In line with this overarching goal, Federal Highway Administration's (FHWA’s) Exploratory Advan
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United States. Department of Transportation. Federal Highway Administration (2024). Digital Twin-Enabled Extended Active Safety Analysis for Mixed Traffic (Report No. FHWA-HRT-24-054). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521488
United States. Department of Transportation. Federal Highway Administration. Digital Twin-Enabled Extended Active Safety Analysis for Mixed Traffic. Report no. FHWA-HRT-24-054. United States. Department of Transportation. Federal Highway Administration, 2024. https://doi.org/10.21949/1521488.
United States. Department of Transportation. Federal Highway Administration Digital Twin-Enabled Extended Active Safety Analysis for Mixed Traffic. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-054, ROSA P. https://doi.org/10.21949/1521488.
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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FHWA R&T Now
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A newsletter about research, development, and technology (RD&T) at the U.S. Department of Transportation’s (USDOT) Federal Highway Administration (FHWA).
United States. Department of Transportation. Federal Highway Administration (2024). FHWA R&T Now [April 2024] (Report No. FHWA-HRT-24-069). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521739
United States. Department of Transportation. Federal Highway Administration. FHWA R&T Now [April 2024]. Report no. FHWA-HRT-24-069. United States. Department of Transportation. Federal Highway Administration, 2024. https://doi.org/10.21949/1521739.
United States. Department of Transportation. Federal Highway Administration FHWA R&T Now [April 2024]. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-069, ROSA P. https://doi.org/10.21949/1521739.
The ability to exchange electronic messages with mobile devices in realtime has the potential to improve travel safety, mobility, and the experience for users of the surface transportation systems. Intelligent transportation system devices and traffic management systems using information derived from sharing electronic messages with travelers, vehi
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Smith, T., Toth, C., & Timcho, T. (2024). Sharing and Using Connected Device Data to Improve Traveler Safety and Traffic Management — Review of Current Practice (Report No. FHWA-HRT-24-086). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/74277
Smith, Theodore, Chris Toth, and Tom Timcho. Sharing and Using Connected Device Data to Improve Traveler Safety and Traffic Management — Review of Current Practice. Report no. FHWA-HRT-24-086. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024. https://rosap.ntl.bts.gov/view/dot/74277.
Smith, Theodore, et al. Sharing and Using Connected Device Data to Improve Traveler Safety and Traffic Management — Review of Current Practice. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2024, Report no. FHWA-HRT-24-086, ROSA P. https://rosap.ntl.bts.gov/view/dot/74277.
United States. Department of Transportation. Federal Highway Administration
2024-04-01
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This Transportation Pooled Fund (TPF) study is aimed to bring intergovernmental partners together to efficiently research, design, plan, test, and implement safety improvements that align with FHWA’s Strategic Agenda for Pedestrian and Bicycle Transportation.
United States. Department of Transportation. Federal Highway Administration (2024). TPF Success Story - TPF-5(370) Fostering Innovation in Pedestrian and Bicycle Transportation Pooled Fund (TPF) Study (Report No. FHWA-HRT-24-098). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521768
United States. Department of Transportation. Federal Highway Administration. TPF Success Story - TPF-5(370) Fostering Innovation in Pedestrian and Bicycle Transportation Pooled Fund (TPF) Study. Report no. FHWA-HRT-24-098. United States. Department of Transportation. Federal Highway Administration, 2024. https://doi.org/10.21949/1521768.
United States. Department of Transportation. Federal Highway Administration TPF Success Story - TPF-5(370) Fostering Innovation in Pedestrian and Bicycle Transportation Pooled Fund (TPF) Study. United States. Department of Transportation. Federal Highway Administration, 2024, Report no. FHWA-HRT-24-098, ROSA P. https://doi.org/10.21949/1521768.
The Federal Highway Administration technical advisory (TA) 5140.22, Uncoated Weathering Steel in Structures, issued on October 3, 1989, gave broad guidance to bridge owners on the use of uncoated weathering steel (UWS), covering environments where UWS should be used with caution and detailing guidance. This guidance was mainly qualitative, which is
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McConnell, J., Shenton, H. W., Bai, T., & Rupp, J. T. (2024). Weathering Steel Performance Data Collection (Report No. FHWA-HRT-23-116). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/74086
McConnell, Jennifer, Harry W. Shenton, Tian Bai, and John T. Rupp. Weathering Steel Performance Data Collection. Report no. FHWA-HRT-23-116. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2024. https://rosap.ntl.bts.gov/view/dot/74086.
McConnell, Jennifer, et al. Weathering Steel Performance Data Collection. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2024, Report no. FHWA-HRT-23-116, ROSA P. https://rosap.ntl.bts.gov/view/dot/74086.
This report was prepared in response to House Report 115-237 and House Report 115-750, which requests that the Secretary of Transportation submit a report on the status of corrosion control planning by State departments of transportation (State DOTs) and the status of corrosion control best practice requirements in State regulations and in bid spec
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Becker, C., & Ault, P. (2024). Best Practices for Corrosion Control and Mitigation (Report No. FHWA-HRT-24-127). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/74535
Becker, Chip and Pete Ault. Best Practices for Corrosion Control and Mitigation. Report no. FHWA-HRT-24-127. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024. https://rosap.ntl.bts.gov/view/dot/74535.
Becker, Chip, and Pete Ault Best Practices for Corrosion Control and Mitigation. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2024, Report no. FHWA-HRT-24-127, ROSA P. https://rosap.ntl.bts.gov/view/dot/74535.
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