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Federal Highway Administration

rosaP Repository & Open Science Access Portal

This collection contains reports and resources from the Federal Highway Administration (FHWA). Bookmark this collection: https://rosap.ntl.bts.gov/collection_fhwa or https://doi.org/10.21949/1530833.

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Showing 2581 - 2600 of 15928 results
  • Developing CrashModification Factors for HighFriction Surface Treatments Friction Change Report
    Developing Crash-Modification Factors for High-Friction Surface Treatments: Friction Change Report
    Merritt, David K. ;
    Tallon, R.
    2020-11-01 | PDF
    This report documents results and observations from friction testing of high-friction surface treatments (HFSTs) as part of an FHWA research study, Developing Crash-Modification Factors for High-Friction Surface Treatments. This larger study provides high-quality crash-modification factors and benefit–cost ratios for HFST with calcined bauxite aggr ...
  • Case Study Eliminating Bridge Joints with Link Slabs An Overview of State Practices
    Case Study: Eliminating Bridge Joints with Link Slabs - An Overview of State Practices
    Thorkildsen, Eric T.
    2020-11-01 | PDF
    This case study presents an overview of the usage of link slabs to eliminate bridge joints. Representative state agency practices are reviewed. State procedures selected for review have either large numbers of installed link slabs, available design details, or innovative installation techniques. General background for link slab usage is presented f ...
  • Coordination of IT and TSMO Common Understanding
    Coordination of IT and TSMO: Common Understanding
    United States. Department of Transportation. Federal Highway Administration. Office of Operations
    2020-11-01 | PDF
    This is one of five fliers that highlight aspects of coordination between Information Technology (IT) and Transportation Systems Management and Operations (TSMO) in transportation agencies. Each flier draws from Principles and Strategies for Effective Coordination of IT and TSMO, a Reference Document.
  • Steel Truss Retrofits to Provide Alternate Load Paths for Cut Damaged or Destroyed Members
    Steel Truss Retrofits to Provide Alternate Load Paths for Cut, Damaged, or Destroyed Members
    Agrawal, A.K. ;
    Ettouney, Mohammed
    2020-11-01 | PDF
    Continued stability and performance of long-span truss bridges after loss of a critical member is broadly attributed to “redundancy” because of alternate load paths (ALPs). This report presents an extensive investigation on the load-path redundancy of long-span truss bridges, including quantification of ALP, defined as the spectra of surrounding me ...
  • Public Roads Autumn 2020
    Public Roads, Autumn 2020
    United States. Federal Highway Administration. Office of Research, Development, and Technology
    2020-11-01 | Public Roads | PDF
    Collaboration and Visualization in Hydraulic Engineering ; Improving Safety for Travelers and Wildlife ; Savvy City FInancing Supports Future Infrastructure ; Detecting Bridge Corrosion with a Robotic Magnetic-Based NDE System ; Moving FoRRRwD: Focus on Reducing Rural Roadway Departures
  • LongTerm Pavement Performance Data Analysis Program Effect of Dowel Misalignment on Concrete Pavement Performance
    Long-Term Pavement Performance Data Analysis Program: Effect of Dowel Misalignment on Concrete Pavement Performance
    Rao, Shreenath ;
    Premkumar, Laxmikanth
    2020-11-01 | PDF
    Magnetic imaging tomography (MIT) scanning is a nondestructive method for measuring the alignment of dowels placed at transverse joints of jointed plain concrete pavements (JPCPs). Several highway agencies across the United States have adopted specifications for dowel alignment, with many using the joint score measure. However, this measure was dev ...
  • Office of Corporate Research Technology and Innovation Management
    Office of Corporate Research, Technology, and Innovation Management
    United States. Federal Highway Administration  ...
    2020-11-01 | PDF
    The Office of Corporate Research, Technology, and Innovation Management leads the development and coordination of a national highway research program that closes critical knowledge gaps, identifies collaboration opportunities, and accelerates innovations and technology deployments. The office’s key responsibilities include providing strategic direc ...
  • Calibration in Quantitative Alternatives Analysis
    Calibration in Quantitative Alternatives Analysis
    Mahmassani, Hani ;
    Hale, David
    2020-11-01 | PDF
    In an era of emerging vehicle automation technologies and advanced traffic management strategies, traffic simulation has become an indispensable tool for giving agencies the confidence they need for adoption and implementation. Likewise the importance of calibration cannot be overstated, because there is no other way to ensure reliability of the si ...
  • Infrastructure Connectivity Certification Test Procedures for InfrastructureBased Connected Automated Vehicle Components Traveler Information Message SAE J2735 FHWAJPO22930
    Infrastructure Connectivity Certification Test Procedures for Infrastructure-Based Connected Automated Vehicle Components Traveler Information Message – SAE J2735 [FHWA-JPO-22-930]
    Yoseph, Abey ;
    Balse, Animesh
    2020-10-30 | PDF
    The successful deployment and operation of connected vehicle systems will require that devices, systems, and applications developed by different providers be compatible, interoperable, non-interfering, and, in some instances perhaps, interchangeable. In addition, some devices, systems, and applications, e.g., active safety applications, may be requ ...
  • Infrastructure Connectivity Certification Test Procedures for InfrastructureBased Connected Automated Vehicle Components Personal Safety Message SAE J2735
    Infrastructure Connectivity Certification Test Procedures for Infrastructure-Based Connected Automated Vehicle Components: Personal Safety Message – SAE J2735
    Yoseph, Abey ;
    Balse, Animesh
    2020-10-30 | PDF
    The successful deployment and operation of connected vehicle systems will require that devices, systems, and applications developed by different providers be compatible, interoperable, non-interfering, and, in some instances perhaps, interchangeable. In addition, some devices, systems, and applications, e.g., active safety applications, may be requ ...
  • Infrastructure Connectivity Certification Test Procedures for InfrastructureBased Connected Automated Vehicle Components Traveler Information Message SAE J2735
    Infrastructure Connectivity Certification Test Procedures for Infrastructure-Based Connected Automated Vehicle Components Traveler Information Message – SAE J2735
    Yoseph, Abey ;
    Balse, Animesh
    2020-10-30 | PDF
    The successful deployment and operation of connected vehicle systems will require that devices, systems, and applications developed by different providers be compatible, interoperable, non-interfering, and, in some instances perhaps, interchangeable. In addition, some devices, systems, and applications, e.g., active safety applications, may be requ ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 5 Data Complete Through 10302020
    Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 5, Data Complete Through 10/30/2020
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2020-10-30 | PDF
    The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis ...
  • Human Environment Digest October 29 2020
    Human Environment Digest: October 29, 2020
    United States. Federal Highway Administration. Office of Planning, Environment, and Realty
    2020-10-29 | PDF
    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 ...
  • Special Issue Weekly Traffic Volume Report Interstate Travel for Week No 43
    Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 43
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2020-10-25 | PDF
    The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 4 Data Complete Through 10232020
    Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 4, Data Complete Through 10/23/2020
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2020-10-23 | PDF
    The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis ...
  • Special Issue Weekly Traffic Volume Report Interstate Travel for Week No 42
    Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 42
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2020-10-18 | PDF
    The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 3 Data Complete Through 10162020
    Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 3, Data Complete Through 10/16/2020
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2020-10-16 | PDF
    The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis ...
  • Human Environment Digest October 15 2020
    Human Environment Digest: October 15, 2020
    United States. Federal Highway Administration. Office of Planning, Environment, and Realty
    2020-10-15 | PDF
    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 ...
  • Special Issue Weekly Traffic Volume Report Interstate Travel for Week No 41
    Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 41
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2020-10-11 | PDF
    The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 2 Data Complete Through 1092020
    Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 2, Data Complete Through 10/9/2020
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2020-10-09 | PDF
    The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis ...
2581 - 2600 / 15928