The GIS in Transportation team publishes quarterly newsletters to share information about significant geospatial transportation news, events, and applications. Each issue highlights a specific transportation agency's application of GIS or geospatial data and technology.
United States. Department of Transportation. Federal Highway Administration
2017-07-17
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Memoranda & Guidance: Guidance
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The purpose of this memorandum is to announce the availability of the Federal Highway Administration’s (FHWA’s) carbon monoxide (CO) categorical hot-spot finding updated with MOVES2014a. The original finding was completed on February 12, 2014, following provisions in the transportation conformity rule at 40 CFR 93.123(a)(3) for urban highway projec
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United States. Department of Transportation. Federal Highway Administration (2017). Information: Federal Highway Administration Carbon Monoxide Categorical Hot-Spot Finding with MOVES2014a. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/78231
United States. Department of Transportation. Federal Highway Administration. Information: Federal Highway Administration Carbon Monoxide Categorical Hot-Spot Finding with MOVES2014a. United States. Department of Transportation. Federal Highway Administration, 2017. https://rosap.ntl.bts.gov/view/dot/78231.
United States. Department of Transportation. Federal Highway Administration Information: Federal Highway Administration Carbon Monoxide Categorical Hot-Spot Finding with MOVES2014a. United States. Department of Transportation. Federal Highway Administration, 2017, ROSA P. https://rosap.ntl.bts.gov/view/dot/78231.
Source: Provided by ITS DataHub (its.dot.gov/data) through the National Transportation Library.The primary objective of this project is to develop multiple simulation testbeds/transportation models to evaluate the impacts of Dynamic Mobility Applications (DMA) and the Active Transportation and Demand Management (ATDM) strategies. Specifically, the
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Yelchuru, B., Kamalanathsharma, R. K., Abdelghany, K., Mahmassani, H. S., Rinelli, P., Li, P., Zhou, X., & Ong, B. T. (2017). Analysis, Modeling, and Simulation (AMS) Testbed Development and Evaluation to Support Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) Programs — Evaluation Report for ATDM Program (Report No. FHWA-JPO-16-385). United States. Joint Program Office for Intelligent Transportation Systems. https://doi.org/10.21949/1503759
Yelchuru, Balaji, Raj Kishore Kamalanathsharma, Khaled Abdelghany, Hani S. Mahmassani, Paolo Rinelli, Pengfei Li, Xuesong Zhou, and Boon Teck Ong. Analysis, Modeling, and Simulation (AMS) Testbed Development and Evaluation to Support Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) Programs — Evaluation Report for ATDM Program. Report no. FHWA-JPO-16-385. United States. Joint Program Office for Intelligent Transportation Systems, 2017. https://doi.org/10.21949/1503759.
Yelchuru, Balaji, et al. Analysis, Modeling, and Simulation (AMS) Testbed Development and Evaluation to Support Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) Programs — Evaluation Report for ATDM Program. United States. Joint Program Office for Intelligent Transportation Systems, 2017, Report no. FHWA-JPO-16-385, ROSA P. https://doi.org/10.21949/1503759.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2017-07-13
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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 (2017). Human Environment Digest: July 13, 2017. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/55201
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: July 13, 2017. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2017. https://rosap.ntl.bts.gov/view/dot/55201.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: July 13, 2017. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2017, ROSA P. https://rosap.ntl.bts.gov/view/dot/55201.
This report summarizes a Federal Highway Administration (FHWA) peer exchange that was held on July 11-12, 2017 at the U.S. Department of Transportation Volpe Center in Cambridge, Massachusetts. The purpose of the peer exchange was to bring together practitioners to discuss issues related to and approaches for accommodating renewable energy technolo
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United States. Federal Highway Administration (2017). FHWA Renewable Energy in Highway Rights of Way Peer Exchange: July 11–12, 2017, Cambridge, MA: Summary Report (Report No. FHWA-HEP-17-093). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/58284
United States. Federal Highway Administration. FHWA Renewable Energy in Highway Rights of Way Peer Exchange: July 11–12, 2017, Cambridge, MA: Summary Report. Report no. FHWA-HEP-17-093. United States. Federal Highway Administration, 2017. https://rosap.ntl.bts.gov/view/dot/58284.
United States. Federal Highway Administration FHWA Renewable Energy in Highway Rights of Way Peer Exchange: July 11–12, 2017, Cambridge, MA: Summary Report. United States. Federal Highway Administration, 2017, Report no. FHWA-HEP-17-093, ROSA P. https://rosap.ntl.bts.gov/view/dot/58284.
United States. Department of Transportation. Federal Highway Administration
2017-07-07
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Memoranda & Guidance: Guidance
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This Notice provides procedures governing the determination and redistribution of unneeded balances of Fiscal Year (FY) 2017 obligation limitation subject to lapse on September 30, 2017. The redistribution is pursuant to section 120(c) of the Department of Transportation Appropriations Act, 2017, title I of division K, Public Law (Pub. L.) 115-31.
United States. Department of Transportation. Federal Highway Administration (2017). Federal-Aid Highway Program Obligation Limitation – Fiscal Year 2017 Redistribution After August 1, 2017 (August Redistribution). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/78229
United States. Department of Transportation. Federal Highway Administration. Federal-Aid Highway Program Obligation Limitation – Fiscal Year 2017 Redistribution After August 1, 2017 (August Redistribution). United States. Department of Transportation. Federal Highway Administration, 2017. https://rosap.ntl.bts.gov/view/dot/78229.
United States. Department of Transportation. Federal Highway Administration Federal-Aid Highway Program Obligation Limitation – Fiscal Year 2017 Redistribution After August 1, 2017 (August Redistribution). United States. Department of Transportation. Federal Highway Administration, 2017, ROSA P. https://rosap.ntl.bts.gov/view/dot/78229.
United States. Department of Transportation. Federal Highway Administration
2017-07-07
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Memoranda & Guidance: Guidance
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In 1971, the U.S. Environmental Protection Agency (EPA) first set National Ambient Air Quality Standards (NAAQS) for CO. EPA set an 8-hour primary NAAQS at 9 parts per million (ppm) and a 1hour primary NAAQS at 35 ppm (see table below). All CO areas are currently meeting the NAAQS and have approved maintenance plans.
United States. Department of Transportation. Federal Highway Administration (2017). Federal Highway Administration (FHWA) Carbon Monoxide (CO) Categorical Hot-Spot Finding With MOVES2014a. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/78230
United States. Department of Transportation. Federal Highway Administration. Federal Highway Administration (FHWA) Carbon Monoxide (CO) Categorical Hot-Spot Finding With MOVES2014a. United States. Department of Transportation. Federal Highway Administration, 2017. https://rosap.ntl.bts.gov/view/dot/78230.
United States. Department of Transportation. Federal Highway Administration Federal Highway Administration (FHWA) Carbon Monoxide (CO) Categorical Hot-Spot Finding With MOVES2014a. United States. Department of Transportation. Federal Highway Administration, 2017, ROSA P. https://rosap.ntl.bts.gov/view/dot/78230.
The primary objective of this project is to develop multiple simulation testbeds/transportation models to evaluate the impacts of Dynamic Mobility Application (DMA) connected vehicle applications and Active Transportation and Dynamic management (ATDM) strategies. While the project aims at evaluating both DMA applications and ATDM strategies, the pr
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Yelchuru, B., & Kamalanathsharma, R. (2017). Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for ATDM program (Report No. FHWA-JPO-16-386). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/32671
Yelchuru, Balaji and Raj Kamalanathsharma. Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for ATDM program. Report no. FHWA-JPO-16-386. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2017. https://rosap.ntl.bts.gov/view/dot/32671.
Yelchuru, Balaji, and Raj Kamalanathsharma Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for ATDM program. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2017, Report no. FHWA-JPO-16-386, ROSA P. https://rosap.ntl.bts.gov/view/dot/32671.
The primary objective of this project is to develop multiple simulation testbeds/transportation models to evaluate the impacts of Dynamic Mobility Application (DMA) connected vehicle applications and Active Transportation and Demand management (ATDM) strategies. While the project aims at evaluating both DMA applications and ATDM strategies, the pri
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Yelchuru, B., & Kamalanathsharma, R. (2017). Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for DMA program (Report No. FHWA-JPO-16-384). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/32672
Yelchuru, Balaji and Raj Kamalanathsharma. Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for DMA program. Report no. FHWA-JPO-16-384. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2017. https://rosap.ntl.bts.gov/view/dot/32672.
Yelchuru, Balaji, and Raj Kamalanathsharma Analysis, modeling, and simulation (AMS) testbed development and evaluation to support dynamic mobility applications (DMA) and active transportation and demand management (ATDM) programs — evaluation summary for DMA program. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2017, Report no. FHWA-JPO-16-384, ROSA P. https://rosap.ntl.bts.gov/view/dot/32672.
Highway photovoltaic noise barriers (PVNBs) represent the combination of noise barrier systems and photovoltaic systems in order to mitigate traffic noise while simultaneously producing renewable energy. First deployed in Switzerland in 1989, PVNBs are now found in several countries where transportation agencies have sought ways to find multiple us
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Poe, C., Plovnick, A., Hodges, T., Hastings, A., & Dresley, S. (2017). Highway renewable energy : photovoltaic noise barriers (Report No. DOT-VNTSC-FHWA-17-20;FHWA-HEP-17-088). United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment. https://rosap.ntl.bts.gov/view/dot/32521
Poe, Carson, Amy Plovnick, Tina Hodges, Aaron Hastings, and Sue Dresley. Highway renewable energy : photovoltaic noise barriers. Report no. DOT-VNTSC-FHWA-17-20;FHWA-HEP-17-088. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2017. https://rosap.ntl.bts.gov/view/dot/32521.
Poe, Carson, et al. Highway renewable energy : photovoltaic noise barriers. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2017, Report no. DOT-VNTSC-FHWA-17-20;FHWA-HEP-17-088, ROSA P. https://rosap.ntl.bts.gov/view/dot/32521.
Data are key to making sound decisions on the safety, design, and operations of roadways. In 2010, the Federal Highway Administration (FHWA) published a report entitled Model Inventory of Roadway Elements - MIRE, Version 1.0 (1). MIRE provides a comprehensive listing of roadway and traffic data elements and accompanying data dictionary that serves
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Lefler, N., Zhou, Y., Carter, D., McGee, H. W., Harkey, D. L., & Council, F. M. (2017). Model Inventory of Roadway Elements – MIRE 2.0 (Report No. FHWA-SA-17-048). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/49568
Lefler, Nancy, Yuying Zhou, Daniel Carter, Hugh W. McGee, David L. Harkey, and Forrest M. Council. Model Inventory of Roadway Elements – MIRE 2.0. Report no. FHWA-SA-17-048. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2017. https://rosap.ntl.bts.gov/view/dot/49568.
Lefler, Nancy, et al. Model Inventory of Roadway Elements – MIRE 2.0. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2017, Report no. FHWA-SA-17-048, ROSA P. https://rosap.ntl.bts.gov/view/dot/49568.
The primary objective of this project is to develop multiple simulation testbeds and transportation models to evaluate the impacts of Connected Vehicle Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) strategies. This report documents the evaluations conducted on the San Diego Testbed. The report provides c
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Yelchuru, B., Rinelli, P., Torres, L., & Kamalanathsharma, R. K. (2017). Analysis, Modeling, and Simulation (AMS) Testbed Development and Evaluation to Support Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) Programs: Evaluation Report for the San Diego Testbed [Draft Report] (Report No. FHWA-JPO-16-389). United States. Joint Program Office for Intelligent Transportation Systems. https://doi.org/10.21949/1503758
Yelchuru, Balaji, Paolo Rinelli, Laura Torres, and Raj Kishore Kamalanathsharma. Analysis, Modeling, and Simulation (AMS) Testbed Development and Evaluation to Support Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) Programs: Evaluation Report for the San Diego Testbed [Draft Report]. Report no. FHWA-JPO-16-389. United States. Joint Program Office for Intelligent Transportation Systems, 2017. https://doi.org/10.21949/1503758.
Yelchuru, Balaji, et al. Analysis, Modeling, and Simulation (AMS) Testbed Development and Evaluation to Support Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) Programs: Evaluation Report for the San Diego Testbed [Draft Report]. United States. Joint Program Office for Intelligent Transportation Systems, 2017, Report no. FHWA-JPO-16-389, ROSA P. https://doi.org/10.21949/1503758.
United States. Federal Highway Administration. Exploratory Advanced Research Program
2017-07-01
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Is it possible for a bridge to “feel” changes in loading caused by traffic or the environment and respond by redistributing loads throughout the structure? Answering this intriguing question is the goal of research supported by the Federal Highway Administration (FHWA) Exploratory Advanced Research (EAR) Program. The project, “Self-Sensing Adaptive
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United States. Federal Highway Administration. Exploratory Advanced Research Program (2017). Adaptive Highway Bridge Bearings: Towards Intelligent Infrastructure Systems : [fact sheet] (Report No. FHWA-HRT-17-046;HRTM-30/07-17(WEB)E). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/38013
United States. Federal Highway Administration. Exploratory Advanced Research Program. Adaptive Highway Bridge Bearings: Towards Intelligent Infrastructure Systems : [fact sheet]. Report no. FHWA-HRT-17-046;HRTM-30/07-17(WEB)E. United States. Federal Highway Administration, 2017. https://rosap.ntl.bts.gov/view/dot/38013.
United States. Federal Highway Administration. Exploratory Advanced Research Program Adaptive Highway Bridge Bearings: Towards Intelligent Infrastructure Systems : [fact sheet]. United States. Federal Highway Administration, 2017, Report no. FHWA-HRT-17-046;HRTM-30/07-17(WEB)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/38013.
The Happy, Healthy, Smart Cities Symposium was a two-day event, held on March 29-30, 2016 in Knoxville, Tennessee, focused on exploring the impacts that transportation and land use decisions have on health, safety, and quality of life. The event was hosted by the Knoxville Regional Transportation Planning Organization and the East Tennessee Communi
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Chiarenza, J. (2017). Happy, healthy, smart cities symposium in Knoxville, Tennessee : a TPCB peer exchange (Report No. DOT-VNTSC-FHWA-17-24;FHWA-HEP-18-010). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/32583
Chiarenza, Jonah. Happy, healthy, smart cities symposium in Knoxville, Tennessee : a TPCB peer exchange. Report no. DOT-VNTSC-FHWA-17-24;FHWA-HEP-18-010. United States. Federal Highway Administration, 2017. https://rosap.ntl.bts.gov/view/dot/32583.
Chiarenza, Jonah Happy, healthy, smart cities symposium in Knoxville, Tennessee : a TPCB peer exchange. United States. Federal Highway Administration, 2017, Report no. DOT-VNTSC-FHWA-17-24;FHWA-HEP-18-010, ROSA P. https://rosap.ntl.bts.gov/view/dot/32583.
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 (2017). Successes in Stewardship - Back to the Basics: Bridge Permitting. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/48755
United States. Federal Highway Administration. Successes in Stewardship - Back to the Basics: Bridge Permitting. United States. Federal Highway Administration, 2017. https://rosap.ntl.bts.gov/view/dot/48755.
United States. Federal Highway Administration Successes in Stewardship - Back to the Basics: Bridge Permitting. United States. Federal Highway Administration, 2017, ROSA P. https://rosap.ntl.bts.gov/view/dot/48755.
This Guide provides practical instructions for State DOTs to follow in developing, implementing, and maintaining a Safety Data Business Plan (DBP). A Safety DBP describes a State’s data management challenges, vision and mission for safety data, framework for data governance, and actions for improving its State Safety Data System. Data business plan
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Vandervalk, A., Snyder, D., & Hajek, J. K. (2017). Guide for State Department of Transportation Safety Data Business Planning (Report No. FHWA-SA-17-047). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/49567
Vandervalk, Anita, Derrick Snyder, and Judith K. Hajek. Guide for State Department of Transportation Safety Data Business Planning. Report no. FHWA-SA-17-047. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2017. https://rosap.ntl.bts.gov/view/dot/49567.
Vandervalk, Anita, et al. Guide for State Department of Transportation Safety Data Business Planning. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2017, Report no. FHWA-SA-17-047, ROSA P. https://rosap.ntl.bts.gov/view/dot/49567.
This TechBrief summarizes a program case study that highlights the transformation and automation of the Pennsylvania Department of Transportation (PennDOT) construction process through the development of advanced mobile applications, automated workflows, and their integration with collaboration tools and payment systems to improve overall efficienc
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WSP, & Parsons Brinckerhoff (2017). Addressing Challenges and Return on Investment (ROI) for Paperless Project Delivery (e-Construction) : [techbrief] (Report No. FHWA-HRT-16-068;HRDI-20/07-17(200)E). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/38016
WSP and Parsons Brinckerhoff. Addressing Challenges and Return on Investment (ROI) for Paperless Project Delivery (e-Construction) : [techbrief]. Report no. FHWA-HRT-16-068;HRDI-20/07-17(200)E. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2017. https://rosap.ntl.bts.gov/view/dot/38016.
WSP, et al. Addressing Challenges and Return on Investment (ROI) for Paperless Project Delivery (e-Construction) : [techbrief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2017, Report no. FHWA-HRT-16-068;HRDI-20/07-17(200)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/38016.
This report synthesizes lessons learned and innovations from recent FHWA studies and pilots to help transportation agencies address changing climate conditions and extreme weather events at the asset level. The report is designed to provide needed information to a range of engineering disciplines to integrate climate considerations into transportat
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Choate, A., Dix, B., Wong, A., Rodehorst, B., Jaglom, W., Keller, J., Lennon, J., Dorney, C., Kuchibhotla, R., Mallela, J., & Douglass, S. (2017). Synthesis of Approaches for Addressing Resilience in Project Development (Report No. FHWA-HEP-17-082). Federal Highway Administration (U.S.). https://rosap.ntl.bts.gov/view/dot/50862
Choate, Anne, Brenda Dix, A. Wong, Beth Rodehorst, Wendy Jaglom, Jake Keller, and Justin Lennon, et al.. Synthesis of Approaches for Addressing Resilience in Project Development. Report no. FHWA-HEP-17-082. Federal Highway Administration (U.S.), 2017. https://rosap.ntl.bts.gov/view/dot/50862.
Choate, Anne, et al. Synthesis of Approaches for Addressing Resilience in Project Development. Federal Highway Administration (U.S.), 2017, Report no. FHWA-HEP-17-082, ROSA P. https://rosap.ntl.bts.gov/view/dot/50862.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2017-07-01
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This TechBrief provides an overview of a new dynamic shear rheometer (DSR) method that is an alternative to the bending beam rheometer (BBR) to measure low-temperature rheology, including m‑value and creep stiffness.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2017). Four-mm Dynamic Shear Rheometry : [techbrief] (Report No. FHWA-HRT-15-053HRDI-10/06-17(200)E). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/38012
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. Four-mm Dynamic Shear Rheometry : [techbrief]. Report no. FHWA-HRT-15-053HRDI-10/06-17(200)E. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2017. https://rosap.ntl.bts.gov/view/dot/38012.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Four-mm Dynamic Shear Rheometry : [techbrief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2017, Report no. FHWA-HRT-15-053HRDI-10/06-17(200)E, ROSA P. https://rosap.ntl.bts.gov/view/dot/38012.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2017-07-01
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Public Roads
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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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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2017). Public Roads: July/August 2017 (Report No. FHWA-HRT-17-005). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/49191
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. Public Roads: July/August 2017. Report no. FHWA-HRT-17-005. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2017. https://rosap.ntl.bts.gov/view/dot/49191.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Public Roads: July/August 2017. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2017, Report no. FHWA-HRT-17-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/49191.
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