This user guide provides background information on safety performance functions (SPFs) and the need for calibration. It also serves as a companion “how-to” manual for The Calibrator software tool. Installation Note: The Calibrator was developed for Microsoft Excel versions 2007 and later, running on Windows Operating Systems with the SOLVER add-in
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Lyon, C., Persaud, B. N., & Gross, F. B. (2016). The Calibrator - An SPF Calibration and Assessment Tool User Guide (Report No. FHWA-SA-17-016). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/50484
Lyon, Craig, Bhagwant Naraine Persaud, and Frank B. Gross. The Calibrator - An SPF Calibration and Assessment Tool User Guide. Report no. FHWA-SA-17-016. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2016. https://rosap.ntl.bts.gov/view/dot/50484.
Lyon, Craig, et al. The Calibrator - An SPF Calibration and Assessment Tool User Guide. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2016, Report no. FHWA-SA-17-016, ROSA P. https://rosap.ntl.bts.gov/view/dot/50484.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2016-12-01
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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 (2016). Traffic Volume Trends: December 2016. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/50390
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: December 2016. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2016. https://rosap.ntl.bts.gov/view/dot/50390.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: December 2016. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2016, ROSA P. https://rosap.ntl.bts.gov/view/dot/50390.
The bump at the end of the bridge has long been studied for highways and railways, yet experts from across the transportation industry continue to identify it as one of the most prevalent substructure factors affecting bridge performance. Often, rideability is a subjective measurement used by transportation departments to define the presence of a b
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Henderson, B., Dickes, J., Cimini, G., & Olmedo, C. (2016). FHWA LTPP Guidelines for Measuring Bridge Approach Transitions Using Inertial Profilers (Report No. FHWA-HRT-16-072). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/35619
Henderson, Brandt, Jesse Dickes, Gabe Cimini, and Chris Olmedo. FHWA LTPP Guidelines for Measuring Bridge Approach Transitions Using Inertial Profilers. Report no. FHWA-HRT-16-072. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/35619.
Henderson, Brandt, et al. FHWA LTPP Guidelines for Measuring Bridge Approach Transitions Using Inertial Profilers. United States. Federal Highway Administration, 2016, Report no. FHWA-HRT-16-072, ROSA P. https://rosap.ntl.bts.gov/view/dot/35619.
The production use of precast concrete pavement (PCP) has come a long way over the last 15 years. The technology is gaining wider acceptance in the U.S. for rapid repair and rehabilitation of concrete pavements as well as for heavily trafficked asphalt concrete pavements and intersections. Several U.S. highway agencies, including Caltrans, Illinois
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Tayabji, S. D., & Brink, W. (2016). FHWA Project R05 IAP Funded Project Case Study: Texas Precast Concrete Pavement Intersection Demonstration Project (Report No. FHWA-HIF-17-017). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/38479
Tayabji, Shiraz D. and Wouter Brink. FHWA Project R05 IAP Funded Project Case Study: Texas Precast Concrete Pavement Intersection Demonstration Project. Report no. FHWA-HIF-17-017. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/38479.
Tayabji, Shiraz D., and Wouter Brink FHWA Project R05 IAP Funded Project Case Study: Texas Precast Concrete Pavement Intersection Demonstration Project. United States. Federal Highway Administration, 2016, Report no. FHWA-HIF-17-017, ROSA P. https://rosap.ntl.bts.gov/view/dot/38479.
Increasingly, tolling has become an integral part of transportation infrastructure as cities and States respond to urban mobility challenges and face decreased funding for transportation projects. Toll revenues are often essential to pay the capital cost of the toll facility, as well as its operations and maintenance. Expanded use of tolling has al
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Supporting Files
Federal Highway Administration (U.S.) (2016). Environmental Justice and Tolling: A Review of Tolling and Potential Impacts to Environmental Justice Populations. Federal Highway Administration (U.S.). https://rosap.ntl.bts.gov/view/dot/50873
Federal Highway Administration (U.S.). Environmental Justice and Tolling: A Review of Tolling and Potential Impacts to Environmental Justice Populations. Federal Highway Administration (U.S.), 2016. https://rosap.ntl.bts.gov/view/dot/50873.
Federal Highway Administration (U.S.) Environmental Justice and Tolling: A Review of Tolling and Potential Impacts to Environmental Justice Populations. Federal Highway Administration (U.S.), 2016, ROSA P. https://rosap.ntl.bts.gov/view/dot/50873.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2016-12-01
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On a monthly basis, each State is required to report to the Federal Highway Administration (FHWA), the amount of gallons taxed by that state. This data is analyzed and compiled by FHWA staff. The data on the amount of on-highway fuel use for each State is then used to attribute federal revenue to each State. Yearly, the FHWA, Office of Policy, prov
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2016). Monthly Motor Fuel Reported by States: December 2016 (Report No. FHWA-PL-17-017). United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/50199
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Monthly Motor Fuel Reported by States: December 2016. Report no. FHWA-PL-17-017. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2016. https://rosap.ntl.bts.gov/view/dot/50199.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Monthly Motor Fuel Reported by States: December 2016. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2016, Report no. FHWA-PL-17-017, ROSA P. https://rosap.ntl.bts.gov/view/dot/50199.
This document is a technical summary of the Federal Highway Administration Long-Term Pavement Performance Program report, Analysis of the Study of Environmental Effects in the Absence of Heavy Loads (FHWA-HRT-16-084). The Long-Term Pavement Performance (LTPP) Program monitors the performance of pavements constructed using different materials that a
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Long-Term Bridge Performance Program (U.S.) (2016). Impact of Environmental Factors on Pavement Performance in The Absence of Heavy Loads [TechBrief] (Report No. FHWA-HRT-16-078). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/35917
Long-Term Bridge Performance Program (U.S.). Impact of Environmental Factors on Pavement Performance in The Absence of Heavy Loads [TechBrief]. Report no. FHWA-HRT-16-078. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/35917.
Long-Term Bridge Performance Program (U.S.) Impact of Environmental Factors on Pavement Performance in The Absence of Heavy Loads [TechBrief]. United States. Federal Highway Administration, 2016, Report no. FHWA-HRT-16-078, ROSA P. https://rosap.ntl.bts.gov/view/dot/35917.
United States. Federal Highway Administration. Office of Natural Environment
2016-12-01
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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 (2016). Air Quality and Sustainability Highlights: December 2016/January 2017 (Report No. FHWA-HEP-17-031). United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment. https://rosap.ntl.bts.gov/view/dot/49086
United States. Federal Highway Administration. Office of Natural Environment. Air Quality and Sustainability Highlights: December 2016/January 2017. Report no. FHWA-HEP-17-031. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2016. https://rosap.ntl.bts.gov/view/dot/49086.
United States. Federal Highway Administration. Office of Natural Environment Air Quality and Sustainability Highlights: December 2016/January 2017. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2016, Report no. FHWA-HEP-17-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/49086.
To help with Vehicle-to-Infrastructure (V2I) deployments, a V2I Message Lexicon was developed that explains the relationships and concepts for V2I messages and identifies the ITS standards where they may be found. This lexicon document provides a brief history and background for connected vehicle (CV) and infrastructure-focused standards that relat
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Christie, B. (2016). Vehicle-to-infrastructure (V2I) : message lexicon (Report No. FHWA-JPO-16-264). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/32033
Christie, Blake. Vehicle-to-infrastructure (V2I) : message lexicon. Report no. FHWA-JPO-16-264. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2016. https://rosap.ntl.bts.gov/view/dot/32033.
Christie, Blake Vehicle-to-infrastructure (V2I) : message lexicon. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2016, Report no. FHWA-JPO-16-264, ROSA P. https://rosap.ntl.bts.gov/view/dot/32033.
2016-12-01
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FHWA Highway History Website Articles
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The partnership between the National Park Service, which turns 100 this year, and FHWA has created highway landmarks throughout the country.
Weingroff, R. F., & Hayman, S. (2016). Wondrous Rides Through Nature's Wonders. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/76601
Weingroff, Richard F. and Sherry Hayman. Wondrous Rides Through Nature's Wonders. United States. Department of Transportation. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/76601.
Weingroff, Richard F., and Sherry Hayman Wondrous Rides Through Nature's Wonders. United States. Department of Transportation. Federal Highway Administration, 2016, ROSA P. https://rosap.ntl.bts.gov/view/dot/76601.
This discussion paper was developed for transportation professionals who may be involved in a Public-Private Partnership (P3) concession project. P3 concessions are an integrated service delivery approach where a public transportation agency enters a contractual agreement with a private sector entity to deliver a service and/or facility for a speci
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Page, S., Verdouw, W., Ham, M., & Helwig, J. (2016). Revenue Risk Sharing for Highway Public-Private Partnership Concessions: A Discussion Paper (Report No. FHWA-HIN-17-005;DOT-VNTSC-FHWA-17-03). United States. Department of Transportation. Federal Highway Administration. Office of Innovative Program Delivery. https://rosap.ntl.bts.gov/view/dot/64189
Page, Sasha, Wim Verdouw, Marcel Ham, and John Helwig. Revenue Risk Sharing for Highway Public-Private Partnership Concessions: A Discussion Paper. Report no. FHWA-HIN-17-005;DOT-VNTSC-FHWA-17-03. United States. Department of Transportation. Federal Highway Administration. Office of Innovative Program Delivery, 2016. https://rosap.ntl.bts.gov/view/dot/64189.
Page, Sasha, et al. Revenue Risk Sharing for Highway Public-Private Partnership Concessions: A Discussion Paper. United States. Department of Transportation. Federal Highway Administration. Office of Innovative Program Delivery, 2016, Report no. FHWA-HIN-17-005;DOT-VNTSC-FHWA-17-03, ROSA P. https://rosap.ntl.bts.gov/view/dot/64189.
The purpose of this state-of-the-practice review was to lay both technical and institutional foundation for all aspects of the development of the Virtual Data Access Framework. The review focused on current data sharing and integration practices among State and local agencies, example data environments, technical integration formats, and business r
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Vandervalk, A., Jeanotte, K., Snyder, D., & Bauer, J. (2016). State of the practice on data access, sharing, and integration (Report No. FHWA-HRT-15-072). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/35860
Vandervalk, Anita, Krista Jeanotte, Dena Snyder, and Jocelyn Bauer. State of the practice on data access, sharing, and integration. Report no. FHWA-HRT-15-072. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/35860.
Vandervalk, Anita, et al. State of the practice on data access, sharing, and integration. United States. Federal Highway Administration, 2016, Report no. FHWA-HRT-15-072, ROSA P. https://rosap.ntl.bts.gov/view/dot/35860.
This Guidebook has been developed cooperatively by the U.S. Department of Transportation's Build America Bureau and the Federal Highway Administration's (FHWA) for transportation professionals who may be involved in a Public-Private Partnership (P3) project. The Guidebook is part of a P3 Toolkit consisting of tools and guidance documents to assist
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Titus-Glover, L., Raghunathan, D., Sadasivam, S., Walker, R., Stevens-Credle, G., Desilets, B., Wade, R., Queiroz, C., Mulusa, J., Tillman, R., Richardson, L., Garvin, M., Smith, A., Brodesky, R., & Grillo, C. (2016). Guidebook on Financing of Highway Public-Private Partnership Projects (Report No. FHWA-HIN-17-003). United States. Department of Transportation. Federal Highway Administration. Office of Innovative Program Delivery. https://rosap.ntl.bts.gov/view/dot/64181
Titus-Glover, Leslie, Deepak Raghunathan, Suri Sadasivam, Rodney Walker, Gayna Stevens-Credle, Brien Desilets, and Richard Wade, et al.. Guidebook on Financing of Highway Public-Private Partnership Projects. Report no. FHWA-HIN-17-003. United States. Department of Transportation. Federal Highway Administration. Office of Innovative Program Delivery, 2016. https://rosap.ntl.bts.gov/view/dot/64181.
Titus-Glover, Leslie, et al. Guidebook on Financing of Highway Public-Private Partnership Projects. United States. Department of Transportation. Federal Highway Administration. Office of Innovative Program Delivery, 2016, Report no. FHWA-HIN-17-003, ROSA P. https://rosap.ntl.bts.gov/view/dot/64181.
The wide use of grouts and grout-like materials in the construction industry is seen in applications such as joint sealing, structural repair, and connections in prefabricated bridge elements (PBEs). Currently, different types of grouts are available (e.g., epoxy-based, cementitious-based, etc.). The selection of the most appropriate grout type is
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De la Varga, I. (2016). Dimensional Stability of Grout-like Materials Used in Field-Cast Connections (Report No. FHWA-HRT-16-080;HRDI-40/12-16(WEB)E). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/35887
De la Varga, Igor. Dimensional Stability of Grout-like Materials Used in Field-Cast Connections. Report no. FHWA-HRT-16-080;HRDI-40/12-16(WEB)E. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/35887.
De la Varga, Igor Dimensional Stability of Grout-like Materials Used in Field-Cast Connections. United States. Federal Highway Administration, 2016, Report no. FHWA-HRT-16-080;HRDI-40/12-16(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/35887.
United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center
2016-12-01
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Look inside to find out how you can become part of the Turner-Fairbank team!
United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center (2016). Pathways to Careers in Federal Highway Research : [brochure] (Report No. FHWA-HRT-16-025;HRTM-20/12-15(1M)E). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/38039
United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center. Pathways to Careers in Federal Highway Research : [brochure]. Report no. FHWA-HRT-16-025;HRTM-20/12-15(1M)E. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/38039.
United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Pathways to Careers in Federal Highway Research : [brochure]. United States. Federal Highway Administration, 2016, Report no. FHWA-HRT-16-025;HRTM-20/12-15(1M)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/38039.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2016-12-01
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The Federal Highway Administration (FHWA) is responsible for assuring that adequate highway transportation data and systems performance information is available to support its functions and responsibilities, as well as those of the Administration and United States Congress. A biennial Conditions & Performance report of the future highway investment
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2016). Highway Performance Monitoring System: Field Manual. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/50372
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Highway Performance Monitoring System: Field Manual. United States. Department of Transportation. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/50372.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Highway Performance Monitoring System: Field Manual. United States. Department of Transportation. Federal Highway Administration, 2016, ROSA P. https://rosap.ntl.bts.gov/view/dot/50372.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2016-12-01
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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 (2016). Human Environment Digest: December 1, 2016. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/55217
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: December 1, 2016. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2016. https://rosap.ntl.bts.gov/view/dot/55217.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: December 1, 2016. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2016, ROSA P. https://rosap.ntl.bts.gov/view/dot/55217.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2016-12-01
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An ever-increasing number of transportation agencies are implementing Road Diets, which reallocate vehicle lanes for a number of uses, including accommodating pedestrians, bicyclists, and transit. Road Diets are also a means of traffic calming that can reduce speeding-related crashes and improve overall roadway safety. However, a common concern ass
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United States. Department of Transportation. Federal Highway Administration. Office of Safety (2016). Road Diet: Road Diets' Economic Impacts (Report No. FHWA-SA-17-019). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/50487
United States. Department of Transportation. Federal Highway Administration. Office of Safety. Road Diet: Road Diets' Economic Impacts. Report no. FHWA-SA-17-019. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2016. https://rosap.ntl.bts.gov/view/dot/50487.
United States. Department of Transportation. Federal Highway Administration. Office of Safety Road Diet: Road Diets' Economic Impacts. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2016, Report no. FHWA-SA-17-019, ROSA P. https://rosap.ntl.bts.gov/view/dot/50487.
Successes in Stewardship is a Federal Highway Administration (FHWA) bimonthly newsletter highlighting current best practices in stewardship and environmental review from around the country.
United States. Federal Highway Administration (2016). Successes in Stewardship - A Year in Review: Practical Ways to Implement Takeaways from the 2016 Newsletters. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/48765
United States. Federal Highway Administration. Successes in Stewardship - A Year in Review: Practical Ways to Implement Takeaways from the 2016 Newsletters. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/48765.
United States. Federal Highway Administration Successes in Stewardship - A Year in Review: Practical Ways to Implement Takeaways from the 2016 Newsletters. United States. Federal Highway Administration, 2016, ROSA P. https://rosap.ntl.bts.gov/view/dot/48765.
Soil nail walls are internally stabilized earth-retaining structures. Soil nail walls use a top-down construction with in situ reinforcement to support temporary or permanent excavations. In certain conditions, soil nailing is a viable alternative to other ground anchor systems, considering technical feasibility, cost, and construction duration. Al
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Siel, B. (2016). SNAP_2 (Soil Nail Analysis Program): User’s Manual (Report No. FHWA-HIF-14-01). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/54141
Siel, Barry. SNAP_2 (Soil Nail Analysis Program): User’s Manual. Report no. FHWA-HIF-14-01. United States. Federal Highway Administration, 2016. https://rosap.ntl.bts.gov/view/dot/54141.
Siel, Barry SNAP_2 (Soil Nail Analysis Program): User’s Manual. United States. Federal Highway Administration, 2016, Report no. FHWA-HIF-14-01, ROSA P. https://rosap.ntl.bts.gov/view/dot/54141.
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