Based on bridge failure data compiled by the New York State Department of Transportation, collision, both caused by vessels and vehicles, is the second leading cause of bridge failures after hydraulic. The current AASHTO-LRFD (2012) specification recommends designing a bridge pier vulnerable to vehicular impacts for an equivalent static force of 60
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Agrawal, A. K., El-Tawil, S., Cao, R., Xu, X., Chen, X., & Wong, W. (2018). A Performance-Based Approach for Loading Definition of Heavy Vehicle Impact Events (Report No. FHWA-HIF-18-062). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/38226
Agrawal, Anil K., Sherif El-Tawil, Ran Cao, Xiaochen Xu, X. Chen, and Waider Wong. A Performance-Based Approach for Loading Definition of Heavy Vehicle Impact Events. Report no. FHWA-HIF-18-062. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2018. https://rosap.ntl.bts.gov/view/dot/38226.
Agrawal, Anil K., et al. A Performance-Based Approach for Loading Definition of Heavy Vehicle Impact Events. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2018, Report no. FHWA-HIF-18-062, ROSA P. https://rosap.ntl.bts.gov/view/dot/38226.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2018-05-01
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PDF
FHWA has constructed a national vehicle miles traveled (VMT) forecasting model where future VMT growth rates can be estimated for three major economic scenarios - normal, pessimistic, and optimistic growth. The normal growth scenario represents the most Likely economic outlook reflects IHS' assessment of most probable future trends in U.S. populati
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2018). FHWA Forecasts of Vehicle Miles Traveled (VMT): Spring 2018. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/50566
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. FHWA Forecasts of Vehicle Miles Traveled (VMT): Spring 2018. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2018. https://rosap.ntl.bts.gov/view/dot/50566.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information FHWA Forecasts of Vehicle Miles Traveled (VMT): Spring 2018. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/50566.
This Comprehensive Operations and Maintenance Plan (CMOP) covers planning for the operations and maintenance of all in-vehicle, roadside, mobile device, center, and other equipment and supporting capabilities required in the deployed system. The CMOP also identifies the types and number of equipment required to be maintained and summarizes key oper
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Tampa Hillsborough Expressway Authority (2018). Connected Vehicle Pilot Deployment Program Phase 2 : Comprehensive Maintenance And Operations Plan - Tampa (Thea) (Report No. FHWA-JPO-17-465). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/36237
Tampa Hillsborough Expressway Authority. Connected Vehicle Pilot Deployment Program Phase 2 : Comprehensive Maintenance And Operations Plan - Tampa (Thea). Report no. FHWA-JPO-17-465. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2018. https://rosap.ntl.bts.gov/view/dot/36237.
Tampa Hillsborough Expressway Authority Connected Vehicle Pilot Deployment Program Phase 2 : Comprehensive Maintenance And Operations Plan - Tampa (Thea). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2018, Report no. FHWA-JPO-17-465, ROSA P. https://rosap.ntl.bts.gov/view/dot/36237.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2018-05-01
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PDF
The asphalt binder oxidative aging chemomechanical model provides a significant improvement in the understanding of asphalt binder oxidation chemistry. It offers a more consistent mathematical description of the oxidation process and provides evidence that greatly simplified testing methods can be developed to describe the oxidation behavior of asp
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2018). The Asphalt Binder Oxidative Aging Chemo-Mechanical Model : [techbrief] (Report No. FHWA-HRT-15-052;HRDI-10/05-18(WEB)E). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/37541
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. The Asphalt Binder Oxidative Aging Chemo-Mechanical Model : [techbrief]. Report no. FHWA-HRT-15-052;HRDI-10/05-18(WEB)E. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2018. https://rosap.ntl.bts.gov/view/dot/37541.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology The Asphalt Binder Oxidative Aging Chemo-Mechanical Model : [techbrief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2018, Report no. FHWA-HRT-15-052;HRDI-10/05-18(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/37541.
This white paper on the efforts of State Departments of Transportation (DOTs) and Metropolitan Planning Organizations (MPOs) to integrate resilience into the transportation planning process builds on the findings of a literature review assessing the planning documents for 52 State DOTs and a selection of 101 MPOs. Key research questions sought to u
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Dix, B., Zgoda, B., Vargo, A., Heitsch, S., & Gestwick, T. (2018). Integrating Resilience into the Transportation Planning Process: White Paper on Literature Review Findings (Report No. FHWA-HEP-18-050). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67124
Dix, Brenda, Beth Zgoda, Amanda Vargo, Samantha Heitsch, and Taylor Gestwick. Integrating Resilience into the Transportation Planning Process: White Paper on Literature Review Findings. Report no. FHWA-HEP-18-050. United States. Department of Transportation. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/67124.
Dix, Brenda, et al. Integrating Resilience into the Transportation Planning Process: White Paper on Literature Review Findings. United States. Department of Transportation. Federal Highway Administration, 2018, Report no. FHWA-HEP-18-050, ROSA P. https://rosap.ntl.bts.gov/view/dot/67124.
The HSIP 2017 National Summary Report compiles and summarizes aggregate information related to the States’ progress in implementing HSIP projects. Progress in implementing HSIP projects is described based on the amount of HSIP funds available and the number and general listing of projects obligated during the 2017 reporting cycle. The HSIP 2017 Nat
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Signor, K., & Carter, D. (2018). HSIP 2017 National Summary Report (Report No. FHWA-SA-18-031). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/49588
Signor, Kari and Daniel Carter. HSIP 2017 National Summary Report. Report no. FHWA-SA-18-031. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018. https://rosap.ntl.bts.gov/view/dot/49588.
Signor, Kari, and Daniel Carter HSIP 2017 National Summary Report. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018, Report no. FHWA-SA-18-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/49588.
United States. Federal Highway Administration. Center for Accelerating Innovation
2018-05-01
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Innovator, published by the FHWA Center for Accelerating Innovation, advances implementation of innovative technologies and processes in the highway industry. Its audience is transportation professionals in highway agencies, trade and research groups, academia and the private sector, and the driving public.
United States. Federal Highway Administration. Center for Accelerating Innovation (2018). Innovator - May/June 2018 - Volume 11, Issue 66 (Report No. FHWA-18-CAI-003). United States. Federal Highway Administration. Center for Accelerating Innovation. https://rosap.ntl.bts.gov/view/dot/43994
United States. Federal Highway Administration. Center for Accelerating Innovation. Innovator - May/June 2018 - Volume 11, Issue 66. Report no. FHWA-18-CAI-003. United States. Federal Highway Administration. Center for Accelerating Innovation, 2018. https://rosap.ntl.bts.gov/view/dot/43994.
United States. Federal Highway Administration. Center for Accelerating Innovation Innovator - May/June 2018 - Volume 11, Issue 66. United States. Federal Highway Administration. Center for Accelerating Innovation, 2018, Report no. FHWA-18-CAI-003, ROSA P. https://rosap.ntl.bts.gov/view/dot/43994.
United States. Department of Transportation. Federal Highway Administration
2018-04-30
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Memoranda & Guidance: Guidance
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Attached is a summary of the total number and amounts of earmarked projects that were repurposed by each State and territory during FY 2016. Also attached is a detailed list of earmarked projects that were submitted during the 4th quarter of FY 2016 for repurposing. The FHWA previously submitted a report on 3rd quarter requests for repurposing that
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United States. Department of Transportation. Federal Highway Administration (2018). U.S. Department of Transportation Federal Highway Administration Report to Congress: Repurposed Earmark Submissions 4th Quarter Fiscal Year 2016. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/78332
United States. Department of Transportation. Federal Highway Administration. U.S. Department of Transportation Federal Highway Administration Report to Congress: Repurposed Earmark Submissions 4th Quarter Fiscal Year 2016. United States. Department of Transportation. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/78332.
United States. Department of Transportation. Federal Highway Administration U.S. Department of Transportation Federal Highway Administration Report to Congress: Repurposed Earmark Submissions 4th Quarter Fiscal Year 2016. United States. Department of Transportation. Federal Highway Administration, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/78332.
This How-To guide walks the reader through the process of destination choice modeling. The guide describes the various data sources used in destination choice modeling, how the set of potential destinations is defined, how the model is specified and various factors are incorporated, how parameters are statistically estimated, how destination choice
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Bernardin, V., Daniels, C., & Chen, J. (2018). How-To: Model Destination Choice (Report No. FHWA-HEP-18-080). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/55803
Bernardin, Vince, Clint Daniels, and Jason Chen. How-To: Model Destination Choice. Report no. FHWA-HEP-18-080. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/55803.
Bernardin, Vince, et al. How-To: Model Destination Choice. United States. Federal Highway Administration, 2018, Report no. FHWA-HEP-18-080, ROSA P. https://rosap.ntl.bts.gov/view/dot/55803.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2018-04-19
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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 (2018). Human Environment Digest: April 19, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/55022
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: April 19, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2018. https://rosap.ntl.bts.gov/view/dot/55022.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: April 19, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/55022.
Through round 4 of Every Day Counts (EDC-4), the Federal Highway Administration’s (FHWA) Weather-Savvy Roads effort promotes two distinct road weather management solutions that allow State and local agencies to proactively manage the surface transportation system ahead of and during adverse weather events: Pathfinder and IMO. IMO builds on vehicle-
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United States. Federal Highway Administration (2018). Integrating Mobile Observations (IMO) Overview (Report No. FHWA-HOP-18-041). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/64330
United States. Federal Highway Administration. Integrating Mobile Observations (IMO) Overview. Report no. FHWA-HOP-18-041. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/64330.
United States. Federal Highway Administration Integrating Mobile Observations (IMO) Overview. United States. Federal Highway Administration, 2018, Report no. FHWA-HOP-18-041, ROSA P. https://rosap.ntl.bts.gov/view/dot/64330.
The Intelligent Transportation System Joint Program Office (ITS JPO) focuses on research projects, exploratory studies and deployment support for the intelligent transportation system. The ITS Architecture and Standards Programs are foundational to the other ITS research programs. The Architecture Program provides a framework for the planning and d
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Sill, S., Diephaus, A., Anderson, J., & Christie, B. (2018). Standards Participation Guidance : ITS Standards Program (Report No. FHWA-JPO-18-651). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/36186
Sill, Steve, Ann Diephaus, Justin Anderson, and Blake Christie. Standards Participation Guidance : ITS Standards Program. Report no. FHWA-JPO-18-651. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2018. https://rosap.ntl.bts.gov/view/dot/36186.
Sill, Steve, et al. Standards Participation Guidance : ITS Standards Program. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2018, Report no. FHWA-JPO-18-651, ROSA P. https://rosap.ntl.bts.gov/view/dot/36186.
The purpose of this memorandum is to provide guidance to the FHWA Division Offices to assist in their evaluation that a State DOT has an acceptable process for determining the crashworthiness of roadside safety hardware used on the National Highway System (NHS).
Griffith, M. S. (2018). Action: Evaluating a State DOT's Process to Determine Roadside Safety Hardware Crashworthiness on the National Highway System (NHS). United States. Department of Transportation. Federal Highway Policy & Guidance Center. https://rosap.ntl.bts.gov/view/dot/77941
Griffith, Michael S.. Action: Evaluating a State DOT's Process to Determine Roadside Safety Hardware Crashworthiness on the National Highway System (NHS). United States. Department of Transportation. Federal Highway Policy & Guidance Center, 2018. https://rosap.ntl.bts.gov/view/dot/77941.
Griffith, Michael S. Action: Evaluating a State DOT's Process to Determine Roadside Safety Hardware Crashworthiness on the National Highway System (NHS). United States. Department of Transportation. Federal Highway Policy & Guidance Center, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/77941.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2018-04-06
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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
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United States. Federal Highway Administration. Office of Planning, Environment, and Realty (2018). Human Environment Digest: April 6, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/55023
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: April 6, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2018. https://rosap.ntl.bts.gov/view/dot/55023.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: April 6, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/55023.
One of the U.S. Department of Transportation’s top priorities is the improvement of pedestrian and bicyclist safety. The Federal Highway Administration promotes safe, comfortable, and convenient walking for people of all ages and abilities. Part of this effort has been to encourage a data-driven approach to identifying and mitigating safety problem
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Fitzpatrick, K., Avelar, R., & Turner, S. M. (2018). Guidebook on Identification of High Pedestrian Crash Locations (Report No. FHWA-HRT-17-106;HRDS-30/04-18(WEB)E). United States. Federal Highway Administration. Office of Safety Research and Development. https://rosap.ntl.bts.gov/view/dot/37548
Fitzpatrick, Kay, Raul Avelar, and Shawn M. Turner. Guidebook on Identification of High Pedestrian Crash Locations. Report no. FHWA-HRT-17-106;HRDS-30/04-18(WEB)E. United States. Federal Highway Administration. Office of Safety Research and Development, 2018. https://rosap.ntl.bts.gov/view/dot/37548.
Fitzpatrick, Kay, et al. Guidebook on Identification of High Pedestrian Crash Locations. United States. Federal Highway Administration. Office of Safety Research and Development, 2018, Report no. FHWA-HRT-17-106;HRDS-30/04-18(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/37548.
The Federal Highway Administration has recognized the need to take a comprehensive look at the information requirements and decisionmaking processes of travelers across a range of nonrecurring events. The goal of this study was to review and synthesize information about travelers’ information needs and current practices for information disseminatio
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Robinson, E., Lubar, E., Singer, J. P., Kellman, D., Katz, B., & Kuznicki, S. (2018). State of the Practice for Traveler Information During Nonrecurring Events (Report No. FHWA-HRT-17-014;HRDS-30/04-18(WEB)E). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/37812
Robinson, Emanuel, Elisha Lubar, Jeremiah P. Singer, Daniel Kellman, Bryan Katz, and Scott Kuznicki. State of the Practice for Traveler Information During Nonrecurring Events. Report no. FHWA-HRT-17-014;HRDS-30/04-18(WEB)E. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/37812.
Robinson, Emanuel, et al. State of the Practice for Traveler Information During Nonrecurring Events. United States. Federal Highway Administration, 2018, Report no. FHWA-HRT-17-014;HRDS-30/04-18(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/37812.
The Federal Highway Administration’s (FHWA’s) Office of Corporate Research, Technology, and Innovation Management and the Office of Infrastructure Research and Development selected the Geosynthetic Reinforced Soil–Integrated Bridge System (GRS-IBS) program for evaluation. The evaluators were asked to focus on research topic selection, early researc
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Epstein, D., Badgley, J., & Calley, C. (2018). Geosynthetic Reinforced Soil–Integrated Bridge System Evaluation [Final Report] (Report No. FHWA-HRT-17-073). United States. Federal Highway Administration. Office of Corporate Research, Technology, and Innovation Management. https://rosap.ntl.bts.gov/view/dot/36946
Epstein, David, Jonathan Badgley, and Chris Calley. Geosynthetic Reinforced Soil–Integrated Bridge System Evaluation [Final Report]. Report no. FHWA-HRT-17-073. United States. Federal Highway Administration. Office of Corporate Research, Technology, and Innovation Management, 2018. https://rosap.ntl.bts.gov/view/dot/36946.
Epstein, David, et al. Geosynthetic Reinforced Soil–Integrated Bridge System Evaluation [Final Report]. United States. Federal Highway Administration. Office of Corporate Research, Technology, and Innovation Management, 2018, Report no. FHWA-HRT-17-073, ROSA P. https://rosap.ntl.bts.gov/view/dot/36946.
Over the past 15 years, advances in technology have led to the development of a variety of different travel demand model designs or frameworks. Agencies now face a complex choice when developing or updating their travel model. The alternatives include both very traditional as well as enhanced trip-based designs, activity-based designs of varying co
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Bernardin, V. (2018). How-to: Think About Model Design for Your Region (Report No. FHWA-HEP-20-023). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/55797
Bernardin, Vince. How-to: Think About Model Design for Your Region. Report no. FHWA-HEP-20-023. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/55797.
Bernardin, Vince How-to: Think About Model Design for Your Region. United States. Federal Highway Administration, 2018, Report no. FHWA-HEP-20-023, ROSA P. https://rosap.ntl.bts.gov/view/dot/55797.
The purpose of this peer exchange was to showcase the Geographic Information System (GIS) applications being used for maintenance purposes across the U.S. and discuss challenges, needs, and issues agencies face in implementing maintenance activities. The Pennsylvania Department of Transportation (PennDOT) agreed to host the peer exchange and demons
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Pennsylvania. Department of Transportation (2018). GIS in Maintenance Peer Exchange: Harrisburg, Pennsylvania April 10-11, 2018. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/57298
Pennsylvania. Department of Transportation. GIS in Maintenance Peer Exchange: Harrisburg, Pennsylvania April 10-11, 2018. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/57298.
Pennsylvania. Department of Transportation GIS in Maintenance Peer Exchange: Harrisburg, Pennsylvania April 10-11, 2018. United States. Federal Highway Administration, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/57298.
This Geotechnical Engineering Circular (GEC) is intended to provide recommended guidance for the LRFD design, analysis, and testing of laterally loaded deep foundations for transportation facilities. This document applies to deep foundation elements such as driven piles, drilled shafts, micropiles, and continuous flight auger (CFA) piles that are u
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Parkes, J., Castelli, R. J., Zelenko, B., O'Connor, R., Montesi, M., & Godfrey, E. (2018). Geotechnical Engineering Circular: Design, Analysis, and Testing of Laterally Loaded Deep Foundations that Support Transportation Facilities (Report No. FHWA-HIF-18-031). United States. Federal Highway Administration. Office of Bridge Technology. https://rosap.ntl.bts.gov/view/dot/62720
Parkes, James, Raymond J. Castelli, Brian Zelenko, Robert O'Connor, Matteo Montesi, and Elizabeth Godfrey. Geotechnical Engineering Circular: Design, Analysis, and Testing of Laterally Loaded Deep Foundations that Support Transportation Facilities. Report no. FHWA-HIF-18-031. United States. Federal Highway Administration. Office of Bridge Technology, 2018. https://rosap.ntl.bts.gov/view/dot/62720.
Parkes, James, et al. Geotechnical Engineering Circular: Design, Analysis, and Testing of Laterally Loaded Deep Foundations that Support Transportation Facilities. United States. Federal Highway Administration. Office of Bridge Technology, 2018, Report no. FHWA-HIF-18-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/62720.
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