The Federal Highway Administration is investigating narrowing freeway lanes and shoulders as a cost-effective mobility strategy. The objectives of this project were to develop improved macroscopic analysis tools, calibrate car-following models that capture narrowed lane driving behavior, conduct real-world case studies, develop narrowed lanes deplo
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Hale, D., Kondyli, A., Argote, J., Zhang, X., Schroeder, B., Button, L., Atkinson, J., Stock, D., Cheema, A., Sajjadi, S., Aycin, M., Brackstone, M., Canayon, G., Casas, J., Lenorzer, A., Jia, A., Chetan, J., & James, R. M. (2021). Narrowing Freeway Lanes and Shoulders to Create Additional Travel Lanes (Report No. FHWA-HRT-21-005). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/57273
Hale, David, Alexandra Kondyli, Juan Argote, Xiaoxiao Zhang, Bastian Schroeder, Levi Button, and Jennifer Atkinson, et al.. Narrowing Freeway Lanes and Shoulders to Create Additional Travel Lanes. Report no. FHWA-HRT-21-005. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/57273.
Hale, David, et al. Narrowing Freeway Lanes and Shoulders to Create Additional Travel Lanes. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/57273.
Benefits such as faster construction, more consistent material depths, and savings by better control of material yields have already been noted when automatic machine guidance (AMG) is used in successive pavement-construction activities. Now, the question is whether projects using AMG result in improved smoothness compared with those using conventi
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Mitchell, A., Sadasivam, S., Chang, G. K., Mallela, J., & McLaughlin, K. A. (2021). Determination of Improved Pavement Smoothness When Using 3D Modeling and Automatic Machine Guidance (Report No. FHWA-HRT-21-059). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/57262
Mitchell, Alexa, Suriyanarayanan Sadasivam, George K. Chang, Jagannath Mallela, and Katharina A. McLaughlin. Determination of Improved Pavement Smoothness When Using 3D Modeling and Automatic Machine Guidance. Report no. FHWA-HRT-21-059. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2021. https://rosap.ntl.bts.gov/view/dot/57262.
Mitchell, Alexa, et al. Determination of Improved Pavement Smoothness When Using 3D Modeling and Automatic Machine Guidance. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2021, Report no. FHWA-HRT-21-059, ROSA P. https://rosap.ntl.bts.gov/view/dot/57262.
This report presents the findings of a study on how performance-based planning and programming influences transportation planning and programming decisions at 52 State departments of transportation and 85 metropolitan planning organizations. Research was conducted throughout 2020 using online reviews of planning and programming documents, interview
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Zgoda, B., Duffy, C., Grant, M., Eggert, H., Heggedal, K., & Lettes, S. (2021). Assessment on the Effectiveness of Performance-Based Planning and Programming (PBPP) in Transportation Decision-Making for State Departments of Transportation (DOTs) and Metropolitan Planning Organizations (MPOs) (Report No. FHWA-HEP-21-027). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/58171
Zgoda, Beth, Catherine Duffy, Michael Grant, Haley Eggert, Kristina Heggedal, and Sarah Lettes. Assessment on the Effectiveness of Performance-Based Planning and Programming (PBPP) in Transportation Decision-Making for State Departments of Transportation (DOTs) and Metropolitan Planning Organizations (MPOs). Report no. FHWA-HEP-21-027. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/58171.
Zgoda, Beth, et al. Assessment on the Effectiveness of Performance-Based Planning and Programming (PBPP) in Transportation Decision-Making for State Departments of Transportation (DOTs) and Metropolitan Planning Organizations (MPOs). United States. Federal Highway Administration, 2021, Report no. FHWA-HEP-21-027, ROSA P. https://rosap.ntl.bts.gov/view/dot/58171.
The Federal Highway Administration's Long-Term Bridge Performance (LTBP) program issues a quarterly 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, and data analysis.
United States. Federal Highway Administration (2021). LTBP News: Summer 2021 (Report No. FHWA-HRT-21-063). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/57269
United States. Federal Highway Administration. LTBP News: Summer 2021. Report no. FHWA-HRT-21-063. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/57269.
United States. Federal Highway Administration LTBP News: Summer 2021. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-063, ROSA P. https://rosap.ntl.bts.gov/view/dot/57269.
The Fixing America’s Surface Transportation Act of 2015 established the Surface Transportation System Funding Alternatives (STSFA) Program to provide grants to States or groups of States to demonstrate user-based alternative revenue mechanisms that utilize a user-fee structure to maintain the long-term solvency of the Highway Trust Fund. In Federal
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Sethi, S., Pierce, B., Robbins, J., Van Duren, D., & Agrawal, A. W. (2021). Surface Transportation System Funding Alternatives Phase I Independent Evaluation: Cross-Cutting Report (Report No. FHWA-HOP-19-041). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/60769
Sethi, Sonika, Ben Pierce, Justin Robbins, Drew Van Duren, and Asha Weinstein Agrawal. Surface Transportation System Funding Alternatives Phase I Independent Evaluation: Cross-Cutting Report. Report no. FHWA-HOP-19-041. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/60769.
Sethi, Sonika, et al. Surface Transportation System Funding Alternatives Phase I Independent Evaluation: Cross-Cutting Report. United States. Federal Highway Administration, 2021, Report no. FHWA-HOP-19-041, ROSA P. https://rosap.ntl.bts.gov/view/dot/60769.
The Federal Highway Administration’s (FHWA’s) Development of Crash Modification Factors (DCMF) program was established in 2012 to address highway-safety research needs for evaluating new and innovative safety strategies (e.g., improvements) by developing reliable quantitative estimates of their effectiveness in reducing crashes. Forty-one State dep
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Avelar, R. E., Dixon, K. K., Ashraf, S., Jhamb, A., & Dadashova, B. (2021). Developing Crash Modification Factors for Bicycle-Lane Additions While Reducing Lane and Shoulder Widths [tech brief] (Report No. FHWA-HRT-21-012). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://doi.org/10.21949/1521656
Avelar, Raul Eduardo, Karen K. Dixon, Sruthi Ashraf, Ankit Jhamb, and Bahar Dadashova. Developing Crash Modification Factors for Bicycle-Lane Additions While Reducing Lane and Shoulder Widths [tech brief]. Report no. FHWA-HRT-21-012. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021. https://doi.org/10.21949/1521656.
Avelar, Raul Eduardo, et al. Developing Crash Modification Factors for Bicycle-Lane Additions While Reducing Lane and Shoulder Widths [tech brief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021, Report no. FHWA-HRT-21-012, ROSA P. https://doi.org/10.21949/1521656.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2021-06-01
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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 (2021). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2021. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87750
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2021. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2021. https://rosap.ntl.bts.gov/view/dot/87750.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for April through June 2021. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/87750.
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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Huie, M., Harman, T., Nelson, E. S., Pauly, R., Skrocki, C., Park, H., Claussen, K., Grooms, L., Piskai, K. B., Leslie, E., Azari, H., Shurbutt, J., Meininger, R., Dylla, H. L., & Youtcheff, J. (2021). Public Roads Magazine, Summer 2021 (Report No. FHWA-HRT-21-004). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/57058
Huie, Mary, Thomas Harman, Eileen S. Nelson, Ralph Pauly, Chad Skrocki, Hyungjun Park, and Kirk Claussen, et al.. Public Roads Magazine, Summer 2021. Report no. FHWA-HRT-21-004. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021. https://rosap.ntl.bts.gov/view/dot/57058.
Huie, Mary, et al. Public Roads Magazine, Summer 2021. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021, Report no. FHWA-HRT-21-004, ROSA P. https://rosap.ntl.bts.gov/view/dot/57058.
Building Information Modeling (BIM) for Infrastructure is an open standards–based collaborative work method for structuring, managing, and using data about transportation assets and networks throughout their lifecycles. It liberates data from siloed systems and makes it easier for automated processes to generate asset information and distribute it
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Mallela, J., & Bhargava, A. (2021). Advancing BIM for Infrastructure: National Strategic Roadmap (Report No. FHWA-HRT-21-064). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/56953
Mallela, Jagannath and Abhishek Bhargava. Advancing BIM for Infrastructure: National Strategic Roadmap. Report no. FHWA-HRT-21-064. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/56953.
Mallela, Jagannath, and Abhishek Bhargava Advancing BIM for Infrastructure: National Strategic Roadmap. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-064, ROSA P. https://rosap.ntl.bts.gov/view/dot/56953.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-06-01
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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 (2021). Traffic Volume Trends: June 2021. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/57288
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: June 2021. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2021. https://rosap.ntl.bts.gov/view/dot/57288.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: June 2021. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/57288.
One of the challenges in conducting freight transportation planning and policy analysis is the variation in the types of vehicles that are considered trucks and the manner in which distinctions are made between various types of trucks. The public sector has varying standards by which trucks are distinguished from other vehicle types and are further
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Lindsey, C., Beagan, D. F., Viswanathan, K., Motamed, M., & Yadav, V. (2021). Linking FHWA and NHTSA Vehicle Types and Deciphering Various Truck Weight Data: Methodology for Linking Vehicle Types (Report No. FHWA-PL-021-029). United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/63222
Lindsey, Christopher, Daniel F. Beagan, Krishnan Viswanathan, Moggan Motamed, and Vivek Yadav. Linking FHWA and NHTSA Vehicle Types and Deciphering Various Truck Weight Data: Methodology for Linking Vehicle Types. Report no. FHWA-PL-021-029. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2021. https://rosap.ntl.bts.gov/view/dot/63222.
Lindsey, Christopher, et al. Linking FHWA and NHTSA Vehicle Types and Deciphering Various Truck Weight Data: Methodology for Linking Vehicle Types. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2021, Report no. FHWA-PL-021-029, ROSA P. https://rosap.ntl.bts.gov/view/dot/63222.
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. Federal Highway Administration (2021). Safety Compass Newsletter [Summer 2021: Volume 15 Issue 2]. United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/56291
United States. Federal Highway Administration. Safety Compass Newsletter [Summer 2021: Volume 15 Issue 2]. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2021. https://rosap.ntl.bts.gov/view/dot/56291.
United States. Federal Highway Administration Safety Compass Newsletter [Summer 2021: Volume 15 Issue 2]. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/56291.
As more bridge inspection programs incorporate unmanned aerial systems (UAS) as a tool to enhance the inspection process, fact-based information on optimum specifications for the sensors UAS can carry and other key operational considerations impacting UAS imagery will aid bridge owners and inspectors when considering the acquisition and operation o
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Futron Corporation, & VHB/Vanasse Hangen Brustlin, Inc. (2021). Controlled-Environment Testing of UAS Digital Camera Sensor Specifications and Operational Parameters for Bridge Safety Inspections [tech brief] (Report No. FHWA-HRT-21-060). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/57266
Futron Corporation and VHB/Vanasse Hangen Brustlin, Inc.. Controlled-Environment Testing of UAS Digital Camera Sensor Specifications and Operational Parameters for Bridge Safety Inspections [tech brief]. Report no. FHWA-HRT-21-060. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021. https://rosap.ntl.bts.gov/view/dot/57266.
Futron Corporation, et al. Controlled-Environment Testing of UAS Digital Camera Sensor Specifications and Operational Parameters for Bridge Safety Inspections [tech brief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021, Report no. FHWA-HRT-21-060, ROSA P. https://rosap.ntl.bts.gov/view/dot/57266.
2021-06-01
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FHWA Highway History Website Articles
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This article is about Janet P. Bonneman, the first women engineer at the Colorado Highway Department (CHD) who joined officially in 1972.
Weingroff, R. F. (2021). Janet P. Bonnema: Women - Bad Luck?. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/68564
Weingroff, Richard F.. Janet P. Bonnema: Women - Bad Luck?. United States. Department of Transportation. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/68564.
Weingroff, Richard F. Janet P. Bonnema: Women - Bad Luck?. United States. Department of Transportation. Federal Highway Administration, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/68564.
The Weather Responsive Management Strategies (WRMS) initiative under the Federal Highway Administration (FHWA) Every Day Counts – Round 5 (EDC-5) program promotes the use of road weather data from mobile and connected vehicle (CV) technologies to support traffic and maintenance management strategies during inclement weather. The goal is to improve
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Johnson, D., Coventry, T., Greenfield-Huitt, T., Miller, D., Niazi, B., Yap, B., Lutman, T., Buchholz, R., & Farris, M. (2021). Weather-Responsive Management Strategies (WRMS) – Agency Tools to Manage Infrastructure Impacts during Flood Events (Report No. FHWA-HOP-21-013). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/56426
Johnson, David, Tony Coventry, Tina Greenfield-Huitt, David Miller, Babrak Niazi, Basil Yap, Travis Lutman, Russ Buchholz, and Marty Farris. Weather-Responsive Management Strategies (WRMS) – Agency Tools to Manage Infrastructure Impacts during Flood Events. Report no. FHWA-HOP-21-013. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/56426.
Johnson, David, et al. Weather-Responsive Management Strategies (WRMS) – Agency Tools to Manage Infrastructure Impacts during Flood Events. United States. Federal Highway Administration, 2021, Report no. FHWA-HOP-21-013, ROSA P. https://rosap.ntl.bts.gov/view/dot/56426.
2021-06-01
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FHWA Highway History Website Articles
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This article is about the creation of FHWA and the creation of the National Bridge Inspection Standards (NBIS).
Weingroff, R. F. (2021). Happy 50th Anniversary: National Bridge Inspection Standards. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/68562
Weingroff, Richard F.. Happy 50th Anniversary: National Bridge Inspection Standards. United States. Department of Transportation. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/68562.
Weingroff, Richard F. Happy 50th Anniversary: National Bridge Inspection Standards. United States. Department of Transportation. Federal Highway Administration, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/68562.
In supporting State Departments of Transportation (DOTs) and metropolitan planning organizations (MPOs) in using Geographic Information Systems (GIS), the Federal Highway Administration (FHWA) is publishing this Case Study Report focusing on the use of data collection technologies by transportation agencies to collect and manage geospatial asset an
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Cahill, P., & Englin, E. (2021). Asset and Performance Management at State DOTs: Case Studies of Select Transportation Agencies. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/59220
Cahill, Patricia and Eric Englin. Asset and Performance Management at State DOTs: Case Studies of Select Transportation Agencies. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/59220.
Cahill, Patricia, and Eric Englin Asset and Performance Management at State DOTs: Case Studies of Select Transportation Agencies. United States. Federal Highway Administration, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/59220.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2021-06-01
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The Federal Highway Administration (FHWA) has satisfied the evaluation of contraflow operations requirement mandated by Section 1209 (b)(2)(B) of the Disaster Recovery Reform Act (PL 115-254) through a state of the practice review of the use of evacuation routes to effectively manage contraflow operations during evacuations. This document summarize
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United States. Department of Transportation. Federal Highway Administration. Office of Operations (2021). Disaster Recovery Reform Act Section 1209 (Contraflow Provision): State of the Practice in Selected Locations (Report No. FHWA-HOP-20-026). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/57284
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Disaster Recovery Reform Act Section 1209 (Contraflow Provision): State of the Practice in Selected Locations. Report no. FHWA-HOP-20-026. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2021. https://rosap.ntl.bts.gov/view/dot/57284.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Disaster Recovery Reform Act Section 1209 (Contraflow Provision): State of the Practice in Selected Locations. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2021, Report no. FHWA-HOP-20-026, ROSA P. https://rosap.ntl.bts.gov/view/dot/57284.
Vehicle-to-vehicle (V2V) communication uses wireless technology to send and receive messages with surrounding vehicles. V2V communication increases highway safety through precollision warnings and provides convenience, such as information on traffic congestion. It is becoming standard in the automotive trade to install equipment on new vehicles tha
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United States. Federal Highway Administration (2021). Securing Vehicle-to-Vehicle Communication Through Consortium Blockchain [EAR fact sheet] (Report No. FHWA-HRT-21-048). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/57265
United States. Federal Highway Administration. Securing Vehicle-to-Vehicle Communication Through Consortium Blockchain [EAR fact sheet]. Report no. FHWA-HRT-21-048. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/57265.
United States. Federal Highway Administration Securing Vehicle-to-Vehicle Communication Through Consortium Blockchain [EAR fact sheet]. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-048, ROSA P. https://rosap.ntl.bts.gov/view/dot/57265.
The Federal Highway Administration's (FHWA's) Fostering Multimodal Connectivity Newsletter is intended to provide transportation professionals with real-world examples of ways that multimodal transportation investments promote economic revitalization, provide access to jobs, and achieve safer communities through support of accelerated project deliv
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United States. Federal Highway Administration (2021). FHWA's Fostering Multimodal Connectivity Newsletter - Summer 2022 (Report No. FHWA-HEP-22-025). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/63188
United States. Federal Highway Administration. FHWA's Fostering Multimodal Connectivity Newsletter - Summer 2022. Report no. FHWA-HEP-22-025. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/63188.
United States. Federal Highway Administration FHWA's Fostering Multimodal Connectivity Newsletter - Summer 2022. United States. Federal Highway Administration, 2021, Report no. FHWA-HEP-22-025, ROSA P. https://rosap.ntl.bts.gov/view/dot/63188.
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