United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2018-09-06
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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: September 6, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/55012
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: September 6, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2018. https://rosap.ntl.bts.gov/view/dot/55012.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: September 6, 2018. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/55012.
United States. Department of Transportation. Federal Highway Administration
2018-09-04
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Systemic application of proven safety countermeasures on rural roads helps keep vehicles in their travel lanes and reduce the incidence and severity of roadway departure crashes.
United States. Department of Transportation. Federal Highway Administration (2018). Reducing Rural Roadway Departures. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/90902
United States. Department of Transportation. Federal Highway Administration. Reducing Rural Roadway Departures. United States. Department of Transportation. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/90902.
United States. Department of Transportation. Federal Highway Administration Reducing Rural Roadway Departures. United States. Department of Transportation. Federal Highway Administration, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/90902.
In 2017, the Federal Highway Administration sponsored a project to identify three to five infrastructure-based motorcycle-crash countermeasures to consider for future research. To develop a list of prioritized infrastructure-based motorcycle-crash countermeasures, a workshop titled Identifying Infrastructure-Based Motorcycle-Crash Countermeasures w
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Trueblood, A., Manser, M. P., Shipp, E., & Havemann, C. (2018). Identifying Infrastructure-Based Motorcycle-Crash Countermeasures: Phase I Final Workshop Finding Report (Report No. FHWA-HRT-18-062;HRDS-20/09-18(WEB)E). United States. Federal Highway Administration. Office of Safety Research and Development. https://rosap.ntl.bts.gov/view/dot/37560
Trueblood, A., Michael P. Manser, Eva Shipp, and C. Havemann. Identifying Infrastructure-Based Motorcycle-Crash Countermeasures: Phase I Final Workshop Finding Report. Report no. FHWA-HRT-18-062;HRDS-20/09-18(WEB)E. United States. Federal Highway Administration. Office of Safety Research and Development, 2018. https://rosap.ntl.bts.gov/view/dot/37560.
Trueblood, A., et al. Identifying Infrastructure-Based Motorcycle-Crash Countermeasures: Phase I Final Workshop Finding Report. United States. Federal Highway Administration. Office of Safety Research and Development, 2018, Report no. FHWA-HRT-18-062;HRDS-20/09-18(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/37560.
This document is a technical summary of the Federal Highway Administration report "Safety Evaluation of Protected Left-Turn Phasing and Leading Pedestrian Intervals on Pedestrian Safety" (FHWA-HRT-18-044).
Goughnour, E., Carter, D. L., Lyon, C., Persaud, B., Lan, B., Chun, P., Hamilton, I., & Signor, K. (2018). Safety Evaluation of Leading Pedestrian Intervals on Pedestrian Safety : [techbrief] (Report No. FHWA-HRT-18-060;HRDS-30/09-18(WEB)E). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/37561
Goughnour, Elissa, Daniel L. Carter, Craig Lyon, Bhagwant Persaud, Bo Lan, Piljin Chun, Ian Hamilton, and Kari Signor. Safety Evaluation of Leading Pedestrian Intervals on Pedestrian Safety : [techbrief]. Report no. FHWA-HRT-18-060;HRDS-30/09-18(WEB)E. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2018. https://rosap.ntl.bts.gov/view/dot/37561.
Goughnour, Elissa, et al. Safety Evaluation of Leading Pedestrian Intervals on Pedestrian Safety : [techbrief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2018, Report no. FHWA-HRT-18-060;HRDS-30/09-18(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/37561.
This Technical Brief provides an overview of the work completed under Task 10 of the cooperative agreement entitled “Advancing Steel and Concrete Bridge Technology to Improve Infrastructure Performance Program”. The objective of the research performed under Task 10 was to determine how National Bridge Inventory (NBI) condition ratings could best be
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Schumacher, T., Ghonima, O., Fleischhacker, A., & Unnikrishnan, A. (2018). Performance of Concrete Highway Bridge Decks using Nationwide Condition Data [techbrief] (Report No. FHWA-HIF-18-028). United States. Federal Highway Administration. Office of Bridge Technology. https://rosap.ntl.bts.gov/view/dot/42929
Schumacher, Thomas, Omar Ghonima, Adam Fleischhacker, and Avinash Unnikrishnan. Performance of Concrete Highway Bridge Decks using Nationwide Condition Data [techbrief]. Report no. FHWA-HIF-18-028. United States. Federal Highway Administration. Office of Bridge Technology, 2018. https://rosap.ntl.bts.gov/view/dot/42929.
Schumacher, Thomas, et al. Performance of Concrete Highway Bridge Decks using Nationwide Condition Data [techbrief]. United States. Federal Highway Administration. Office of Bridge Technology, 2018, Report no. FHWA-HIF-18-028, ROSA P. https://rosap.ntl.bts.gov/view/dot/42929.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2018-09-01
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Generally, reduced left-turn conflict intersections are geometric designs that lessen the number or severity of potential vehicle-to-vehicle conflicts associated with left-turn movements. Two of these highly effective intersection designs are included in this FHWA Proven Safety Countermeasure—the restricted crossing U-turn (RCUT) and the median U-t
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United States. Department of Transportation. Federal Highway Administration. Office of Safety (2018). Proven Safety Countermeasure: Reduced Left-Turn Conflict Intersections (Report No. FHWA-SA-18-048). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/49591
United States. Department of Transportation. Federal Highway Administration. Office of Safety. Proven Safety Countermeasure: Reduced Left-Turn Conflict Intersections. Report no. FHWA-SA-18-048. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018. https://rosap.ntl.bts.gov/view/dot/49591.
United States. Department of Transportation. Federal Highway Administration. Office of Safety Proven Safety Countermeasure: Reduced Left-Turn Conflict Intersections. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018, Report no. FHWA-SA-18-048, ROSA P. https://rosap.ntl.bts.gov/view/dot/49591.
This manual is intended to provide a technical resource for engineers responsible for the selection and design of drilled shaft foundations for transportation structures. It is used as the reference manual for use with the National Highway Institute (NHI) training course No. 132014 on the subject, as well as the 10th in the series of FHWA Geotechni
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Brown, D. A., Turner, J. P., Castelli, R. J., & Loehr, E. (2018). Drilled Shafts: Construction Procedures and Design Methods (Report No. FHWA-NHI-18-024). National Highway Institute (U.S.). https://rosap.ntl.bts.gov/view/dot/73033
Brown, Dan A., John P. Turner, Raymond J. Castelli, and Erik Loehr. Drilled Shafts: Construction Procedures and Design Methods. Report no. FHWA-NHI-18-024. National Highway Institute (U.S.), 2018. https://rosap.ntl.bts.gov/view/dot/73033.
Brown, Dan A., et al. Drilled Shafts: Construction Procedures and Design Methods. National Highway Institute (U.S.), 2018, Report no. FHWA-NHI-18-024, ROSA P. https://rosap.ntl.bts.gov/view/dot/73033.
This example involves the replacement of stringers during re-decking on an existing truss/floorbeam/stringer bridge. The existing stringers are non-composite rolled W24x76 beams, that were designed for HS-20 live loads. The design criteria is to provide new stringers to obtain a HS-25 live load rating factor equal to or greater than 1.0, while mini
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Ahlskog, C. (2018). Report on Techniques for Bridge Strengthening. Design Example – Stringer Retrofit - Composite Action and Continuity Changes (Report No. FHWA-HIF-18-044). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure. https://rosap.ntl.bts.gov/view/dot/42821
Ahlskog, C.. Report on Techniques for Bridge Strengthening. Design Example – Stringer Retrofit - Composite Action and Continuity Changes. Report no. FHWA-HIF-18-044. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2018. https://rosap.ntl.bts.gov/view/dot/42821.
Ahlskog, C. Report on Techniques for Bridge Strengthening. Design Example – Stringer Retrofit - Composite Action and Continuity Changes. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2018, Report no. FHWA-HIF-18-044, ROSA P. https://rosap.ntl.bts.gov/view/dot/42821.
One objective of the Exploratory Advanced Research (EAR) Program within the Federal Highway Administration (FHWA) is to cultivate research projects that demonstrate the potential of new materials that are less reliant on limited natural resources for highway transportation. This research project at Washington State University had that same aim. Res
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United States. Federal Highway Administration (2018). Novel Development of A Bio-Based Binder for Sustainable Construction : [fact sheet] (Report No. FHWA-HRT-18-030;HRTM-30/09-18(WEB)E). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/38029
United States. Federal Highway Administration. Novel Development of A Bio-Based Binder for Sustainable Construction : [fact sheet]. Report no. FHWA-HRT-18-030;HRTM-30/09-18(WEB)E. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/38029.
United States. Federal Highway Administration Novel Development of A Bio-Based Binder for Sustainable Construction : [fact sheet]. United States. Federal Highway Administration, 2018, Report no. FHWA-HRT-18-030;HRTM-30/09-18(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/38029.
Shared mobility services provide users with short-term access to transportation on an as-needed basis rather than through ownership. While ride-sourcing services are recent entrants to the industry, they have come to dominate what is thought of as shared mobility in the United States, often drowning out other shared alternatives. In Europe, the con
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Feigon, S., Frisbie, T., Halls, C., & Murphy, C. (2018). Shared Use Mobility: European Experience and Lessons Learned (Report No. FHWA-PL-18-026). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/85832
Feigon, Sharon, Tim Frisbie, Cassie Halls, and Colin Murphy. Shared Use Mobility: European Experience and Lessons Learned. Report no. FHWA-PL-18-026. United States. Department of Transportation. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/85832.
Feigon, Sharon, et al. Shared Use Mobility: European Experience and Lessons Learned. United States. Department of Transportation. Federal Highway Administration, 2018, Report no. FHWA-PL-18-026, ROSA P. https://rosap.ntl.bts.gov/view/dot/85832.
PedPal is a prototype mobile (smartphone) app designed to assist pedestrians with disabilities when crossing the street at signalized intersections. PedPal interacts directly with the traffic signal system controlling the intersection to communicate both crossing intent (eliminating the need to seek out and push a pedestrian call button) and person
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Smith, S., Rubinstein, Z. B., Dias, B., Sarkhili, S., Ashqar, H., Farber, M., Lodato, D., & Harper, C. (2018). Connecting Pedestrians with Disabilities to Adaptive Signal Control for Safe Intersection Crossing and Enhanced Mobility: 2018 Field Test and Evaluation (Report No. FHWA-JPO-18-706;Task 1.3 Report). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/39011
Smith, Stephen, Zachary B. Rubinstein, Bernardine Dias, Sara Sarkhili, Huthaifa Ashqar, Maurice Farber, Diego Lodato, and Corey Harper. Connecting Pedestrians with Disabilities to Adaptive Signal Control for Safe Intersection Crossing and Enhanced Mobility: 2018 Field Test and Evaluation. Report no. FHWA-JPO-18-706;Task 1.3 Report. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2018. https://rosap.ntl.bts.gov/view/dot/39011.
Smith, Stephen, et al. Connecting Pedestrians with Disabilities to Adaptive Signal Control for Safe Intersection Crossing and Enhanced Mobility: 2018 Field Test and Evaluation. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2018, Report no. FHWA-JPO-18-706;Task 1.3 Report, ROSA P. https://rosap.ntl.bts.gov/view/dot/39011.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2018-09-01
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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 (2018). Urban Congestion Report (UCR): A Snapshot of Year-to-Year Congestion Trends in the U.S. for July through September 2018. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/50603
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Urban Congestion Report (UCR): A Snapshot of Year-to-Year Congestion Trends in the U.S. for July through September 2018. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2018. https://rosap.ntl.bts.gov/view/dot/50603.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Urban Congestion Report (UCR): A Snapshot of Year-to-Year Congestion Trends in the U.S. for July through September 2018. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/50603.
Model Systems Engineering Documents for Dynamic Message Sign (DMS) Systems is intended to provide guidance for professionals involved in developing systems engineering documents covering the evaluation, selection and implementation of DMS systems.
Brummond, J., Ice, R. C., & Denney, R. W. (2018). Model Systems Engineering Documents for Dynamic Message Sign (DMS) Systems (Report No. FHWA-HOP-18-080). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/43553
Brummond, Jeffrey, Ron C. Ice, and Richard W. Denney. Model Systems Engineering Documents for Dynamic Message Sign (DMS) Systems. Report no. FHWA-HOP-18-080. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/43553.
Brummond, Jeffrey, et al. Model Systems Engineering Documents for Dynamic Message Sign (DMS) Systems. United States. Federal Highway Administration, 2018, Report no. FHWA-HOP-18-080, ROSA P. https://rosap.ntl.bts.gov/view/dot/43553.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2018-09-01
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The Federal Highway Administration (FHWA) recently published Low-cost Treatments for Horizontal Curve Safety 2016, which offers guidance concerning the safety effects of various countermeasures intended to mitigate roadway departure crashes along horizontal curves.1 One sign application with potential safety improvements along horizontal curves on
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United States. Department of Transportation. Federal Highway Administration. Office of Safety (2018). Indoor Simulator Study and Field Study Evaluation of Sequential Flashing Chevron Signs on Two-lane Rural Highways - Technical Brief (Report No. FHWA-SA-18-074). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/49613
United States. Department of Transportation. Federal Highway Administration. Office of Safety. Indoor Simulator Study and Field Study Evaluation of Sequential Flashing Chevron Signs on Two-lane Rural Highways - Technical Brief. Report no. FHWA-SA-18-074. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018. https://rosap.ntl.bts.gov/view/dot/49613.
United States. Department of Transportation. Federal Highway Administration. Office of Safety Indoor Simulator Study and Field Study Evaluation of Sequential Flashing Chevron Signs on Two-lane Rural Highways - Technical Brief. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018, Report no. FHWA-SA-18-074, ROSA P. https://rosap.ntl.bts.gov/view/dot/49613.
United States. Federal Highway Administration. Center for Accelerating Innovation
2018-09-01
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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 - September/October 2018 - Volume 12, Issue 68 (Report No. FHWA-18-CAI-006). United States. Federal Highway Administration. Center for Accelerating Innovation. https://rosap.ntl.bts.gov/view/dot/43992
United States. Federal Highway Administration. Center for Accelerating Innovation. Innovator - September/October 2018 - Volume 12, Issue 68. Report no. FHWA-18-CAI-006. United States. Federal Highway Administration. Center for Accelerating Innovation, 2018. https://rosap.ntl.bts.gov/view/dot/43992.
United States. Federal Highway Administration. Center for Accelerating Innovation Innovator - September/October 2018 - Volume 12, Issue 68. United States. Federal Highway Administration. Center for Accelerating Innovation, 2018, Report no. FHWA-18-CAI-006, ROSA P. https://rosap.ntl.bts.gov/view/dot/43992.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2018-09-01
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The FHWA has identified and is promoting widespread use of a set of 20 Proven Safety Countermeasures that can offer significant, measurable impacts as part of any agency’s data-driven, systemic approach to improving safety. These strategies are designed to enhance safety on all kinds of roads—from rural to urban, from high-volume freeways to less t
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United States. Department of Transportation. Federal Highway Administration. Office of Safety (2018). Making Our Roads Safer One Countermeasure at a Time (Report No. FHWA-SA-18-068). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/49608
United States. Department of Transportation. Federal Highway Administration. Office of Safety. Making Our Roads Safer One Countermeasure at a Time. Report no. FHWA-SA-18-068. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018. https://rosap.ntl.bts.gov/view/dot/49608.
United States. Department of Transportation. Federal Highway Administration. Office of Safety Making Our Roads Safer One Countermeasure at a Time. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018, Report no. FHWA-SA-18-068, ROSA P. https://rosap.ntl.bts.gov/view/dot/49608.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2018-09-01
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The Federal Highway Administration has published a new resource, Transportation Safety Planning and the Zero Deaths Vision: A Guide for Metropolitan Planning Organizations and Local Communities, which provides references to key information for metropolitan planning organizations (MPOs) and local communities to understand and use the safety planning
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United States. Department of Transportation. Federal Highway Administration. Office of Safety (2018). Transportation Safety Planning and the Zero Deaths Vision: A Guide for Metropolitan Planning Organizations and Local Communities (Report No. FHWA-SA-18-069). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/49609
United States. Department of Transportation. Federal Highway Administration. Office of Safety. Transportation Safety Planning and the Zero Deaths Vision: A Guide for Metropolitan Planning Organizations and Local Communities. Report no. FHWA-SA-18-069. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018. https://rosap.ntl.bts.gov/view/dot/49609.
United States. Department of Transportation. Federal Highway Administration. Office of Safety Transportation Safety Planning and the Zero Deaths Vision: A Guide for Metropolitan Planning Organizations and Local Communities. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2018, Report no. FHWA-SA-18-069, ROSA P. https://rosap.ntl.bts.gov/view/dot/49609.
United States. Federal Highway Administration (2018). FHWA National Dialogue on Highway Automation: Automation and Freight. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/54049
United States. Federal Highway Administration. FHWA National Dialogue on Highway Automation: Automation and Freight. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/54049.
United States. Federal Highway Administration FHWA National Dialogue on Highway Automation: Automation and Freight. United States. Federal Highway Administration, 2018, ROSA P. https://rosap.ntl.bts.gov/view/dot/54049.
The Strategic Highway Research Program 2 (SHRP2) Project R05 was conducted from 2008 to 2012 to develop technical information and guidelines that would encourage the rapid and successful application of PC technology to rehabilitate asphalt and concrete pavements. In 2013, the SHRP2 Implementation Assistance Program (IAP) was created to help highway
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Tayabji, S. D. (2018). FHWA Project R05 IAP Funded Project Case Study: Florida I-10 Precast Concrete Bridge Approach Slab Demonstration Project (Report No. FHWA-HIF-18-057). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/38322
Tayabji, Shiraz D.. FHWA Project R05 IAP Funded Project Case Study: Florida I-10 Precast Concrete Bridge Approach Slab Demonstration Project. Report no. FHWA-HIF-18-057. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/38322.
Tayabji, Shiraz D. FHWA Project R05 IAP Funded Project Case Study: Florida I-10 Precast Concrete Bridge Approach Slab Demonstration Project. United States. Federal Highway Administration, 2018, Report no. FHWA-HIF-18-057, ROSA P. https://rosap.ntl.bts.gov/view/dot/38322.
Bridge inspectors today are fortunate to have access to emerging technologies that can help gauge the internal condition of a bridge. For example, some tools use sound waves that travel inside a bridge; others use infrared thermography to detect temperature changes inside a structure. But inspectors and civil engineers acknowledge that these techno
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United States. Federal Highway Administration (2018). Virtual Nondestructive Evaluation Laboratory for Highway Structures : [fact sheet] (Report No. FHWA-HRT-18-033;HRTM-30/09-18(WEB)E). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/37575
United States. Federal Highway Administration. Virtual Nondestructive Evaluation Laboratory for Highway Structures : [fact sheet]. Report no. FHWA-HRT-18-033;HRTM-30/09-18(WEB)E. United States. Federal Highway Administration, 2018. https://rosap.ntl.bts.gov/view/dot/37575.
United States. Federal Highway Administration Virtual Nondestructive Evaluation Laboratory for Highway Structures : [fact sheet]. United States. Federal Highway Administration, 2018, Report no. FHWA-HRT-18-033;HRTM-30/09-18(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/37575.
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