Federal Highway Administration (U.S.) (2020). Peer-to-Peer Exchange: Model-Based Digital Project Delivery Approaches and Partnering Considerations (Report No. FHWA-HIF-20-027). Federal Highway Administration (U.S.). https://rosap.ntl.bts.gov/view/dot/51717
Federal Highway Administration (U.S.). Peer-to-Peer Exchange: Model-Based Digital Project Delivery Approaches and Partnering Considerations. Report no. FHWA-HIF-20-027. Federal Highway Administration (U.S.), 2020. https://rosap.ntl.bts.gov/view/dot/51717.
Federal Highway Administration (U.S.) Peer-to-Peer Exchange: Model-Based Digital Project Delivery Approaches and Partnering Considerations. Federal Highway Administration (U.S.), 2020, Report no. FHWA-HIF-20-027, ROSA P. https://rosap.ntl.bts.gov/view/dot/51717.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2020-04-01
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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 (2020). Traffic Volume Trends: April 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/50076
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: April 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2020. https://rosap.ntl.bts.gov/view/dot/50076.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: April 2020. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/50076.
The Pavement Preservation Research Roadmap, originally developed between 2006 and 2008 as the Transportation System Preservation (TSP) Research, Development, and Implementation Roadmap and including both pavements and bridges, was updated under a contract with the Federal Highway Administration (FHWA). The Roadmap is intended for use by State, loca
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Corley-Lay, J., O'Doherty, J., Hooks, J., & Scofield, L. (2020). Federal Highway Administration (FHWA) Pavement Preservation Research Roadmap (Report No. FHWA-HIF-20-070). United States. Federal Highway Administration. Office of Pavement Technology. https://rosap.ntl.bts.gov/view/dot/60355
Corley-Lay, Judith, John O'Doherty, John Hooks, and Larry Scofield. Federal Highway Administration (FHWA) Pavement Preservation Research Roadmap. Report no. FHWA-HIF-20-070. United States. Federal Highway Administration. Office of Pavement Technology, 2020. https://rosap.ntl.bts.gov/view/dot/60355.
Corley-Lay, Judith, et al. Federal Highway Administration (FHWA) Pavement Preservation Research Roadmap. United States. Federal Highway Administration. Office of Pavement Technology, 2020, Report no. FHWA-HIF-20-070, ROSA P. https://rosap.ntl.bts.gov/view/dot/60355.
HFST is a pavement surface treatment consisting of a polymer resin binder used to bond a 1‒3 mm nominal-size polish- and abrasion-resistant aggregate to the pavement surface. HFST is a safety treatment used specifically to restore or enhance the friction of virtually any pavement surface in order to reduce roadway departure crashes. HFST provides a
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United States. Federal Highway Administration (2020). High Friction Surface Treatment (HFST) Quick Reference [presentation]. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/49717
United States. Federal Highway Administration. High Friction Surface Treatment (HFST) Quick Reference [presentation]. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/49717.
United States. Federal Highway Administration High Friction Surface Treatment (HFST) Quick Reference [presentation]. United States. Federal Highway Administration, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/49717.
There is a lot of global experience with fixed fire fighting systems in road tunnels, particularly in Australia and Japan, but also in several recently constructed tunnels in the United States and Europe. The U.S. first implemented FFFS in their tunnels in the 1950s, however, this approach did not become routine, partly due to unsuccessful tests of
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Bergeson, W., Warren, T., Bilson, M., Connell, B., Melvin, B., & McQuade-Jones, K. (2020). Fixed Fire Fighting and Emergency Ventilation Systems for Highway Tunnels – Workshop Report (Report No. FHWA-HIF-20-060). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/50664
Bergeson, William, Tuonglinh Warren, Matt Bilson, Bill Connell, Bobby Melvin, and Katie McQuade-Jones. Fixed Fire Fighting and Emergency Ventilation Systems for Highway Tunnels – Workshop Report. Report no. FHWA-HIF-20-060. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/50664.
Bergeson, William, et al. Fixed Fire Fighting and Emergency Ventilation Systems for Highway Tunnels – Workshop Report. United States. Federal Highway Administration, 2020, Report no. FHWA-HIF-20-060, ROSA P. https://rosap.ntl.bts.gov/view/dot/50664.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2020-04-01
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Chicago’s Vision Zero Action Plan identified 43 High Crash Corridors, which are corridors where a disproportionately high number of people have been killed or severely injured in traffic crashes. The Chicago Department of Transportation (CDOT) adopted a Rapid Delivery approach to provide a better response to the community and quickly address road s
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United States. Department of Transportation. Federal Highway Administration. Office of Safety (2020). Milwaukee Avenue Rapid Delivery Approach — Chicago, Illinois (Report No. FHWA-SA-20-007). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/55638
United States. Department of Transportation. Federal Highway Administration. Office of Safety. Milwaukee Avenue Rapid Delivery Approach — Chicago, Illinois. Report no. FHWA-SA-20-007. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2020. https://rosap.ntl.bts.gov/view/dot/55638.
United States. Department of Transportation. Federal Highway Administration. Office of Safety Milwaukee Avenue Rapid Delivery Approach — Chicago, Illinois. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2020, Report no. FHWA-SA-20-007, ROSA P. https://rosap.ntl.bts.gov/view/dot/55638.
2020-04-01
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According to the 2017 National Household Travel Survey (NHTS), Americans ages 5+ reported more than 42.5 billion trips by walking or biking. These trips averaged 1 mile in length and 16 minutes in duration and comprised almost 12% of all trips annually (across all modes and purposes). Definitionally, non-motorized trips (i.e., walking and biking) i
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United States. Federal Highway Administration (2020). FHWA NHTS Brief: Non-Motorized Travel: 2017 National Household Travel Survey. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/58741
United States. Federal Highway Administration. FHWA NHTS Brief: Non-Motorized Travel: 2017 National Household Travel Survey. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/58741.
United States. Federal Highway Administration FHWA NHTS Brief: Non-Motorized Travel: 2017 National Household Travel Survey. United States. Federal Highway Administration, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/58741.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2020-04-01
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Work zones are a necessary part of the life cycle of our streets, roads, and highways. They provide a safe area for workers and a safe route for road users around needed road work activity (construction, maintenance, utility). Although work zones play a critical role, they can also be a major cause of congestion and delay. Every spring, the Federal
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United States. Department of Transportation. Federal Highway Administration. Office of Operations (2020). National Work Zone Awareness Week: Safe Work Zones for All: We Can Do It (Report No. FHWA-HOP-20-024). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/55722
United States. Department of Transportation. Federal Highway Administration. Office of Operations. National Work Zone Awareness Week: Safe Work Zones for All: We Can Do It. Report no. FHWA-HOP-20-024. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020. https://rosap.ntl.bts.gov/view/dot/55722.
United States. Department of Transportation. Federal Highway Administration. Office of Operations National Work Zone Awareness Week: Safe Work Zones for All: We Can Do It. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020, Report no. FHWA-HOP-20-024, ROSA P. https://rosap.ntl.bts.gov/view/dot/55722.
Methods for modeling freight demand and goods movement in the United States (U.S.) are evolving from aggregated methods to disaggregated methods. Emerging technologies are providing opportunities for more efficient data collection and new data collection that support more advanced freight modeling, analysis and data development environments. An imp
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Lindsey, C., Beagan, D. F., & Viswanathan, K. (2020). Research, Development, and Application of Methods to Update Freight Analysis Framework Out-of-Scope Commodity Flow Data and Truck Payload Factors (Report No. FHWA-HOP-20-011). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/55713
Lindsey, Christopher, Daniel F. Beagan, and K. Viswanathan. Research, Development, and Application of Methods to Update Freight Analysis Framework Out-of-Scope Commodity Flow Data and Truck Payload Factors. Report no. FHWA-HOP-20-011. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020. https://rosap.ntl.bts.gov/view/dot/55713.
Lindsey, Christopher, et al. Research, Development, and Application of Methods to Update Freight Analysis Framework Out-of-Scope Commodity Flow Data and Truck Payload Factors. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020, Report no. FHWA-HOP-20-011, ROSA P. https://rosap.ntl.bts.gov/view/dot/55713.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2020-04-01
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On an annual basis, over 1.1 million trucks and more than 5 million vehicles cross the Peace Bridge that spans the Niagara River and connects Western New York State and Southern Ontario, Canada.1 Twenty- five miles north on the Niagara River, about 800,000 trucks and 2.6 million vehicles annually cross the Lewiston- Queenston Bridge.2 Trucks crossi
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United States. Department of Transportation. Federal Highway Administration. Office of Operations (2020). Improving Mobility at the U.S./Canada Border through Border Wait Time Data-Sharing: the Buffalo-Niagara Falls Region (Report No. FHWA-HOP-20-034). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/49722
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Improving Mobility at the U.S./Canada Border through Border Wait Time Data-Sharing: the Buffalo-Niagara Falls Region. Report no. FHWA-HOP-20-034. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020. https://rosap.ntl.bts.gov/view/dot/49722.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Improving Mobility at the U.S./Canada Border through Border Wait Time Data-Sharing: the Buffalo-Niagara Falls Region. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2020, Report no. FHWA-HOP-20-034, ROSA P. https://rosap.ntl.bts.gov/view/dot/49722.
Inertial profilers can produce valid measurements of longitudinal road profile when they are operated under favorable conditions. However, their performance deteriorates when the host vehicle travels at low speed, decelerates, or comes to a stop. These limitations have hindered the application of inertial profilers for measurement of roughness on l
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Karamihas, S. M. (2020). Improving the Quality of Inertial Profiler Measurements at Low Speed, During Braking, and Through Stops (Report No. FHWA-RC-21-0001). United States. Federal Highway Administration. Western Federal Lands Highway Division. https://rosap.ntl.bts.gov/view/dot/74313
Karamihas, Steven M.. Improving the Quality of Inertial Profiler Measurements at Low Speed, During Braking, and Through Stops. Report no. FHWA-RC-21-0001. United States. Federal Highway Administration. Western Federal Lands Highway Division, 2020. https://rosap.ntl.bts.gov/view/dot/74313.
Karamihas, Steven M. Improving the Quality of Inertial Profiler Measurements at Low Speed, During Braking, and Through Stops. United States. Federal Highway Administration. Western Federal Lands Highway Division, 2020, Report no. FHWA-RC-21-0001, ROSA P. https://rosap.ntl.bts.gov/view/dot/74313.
This Technical Brief provides an overview of asphalt materials quality assurance with a focus on acceptance risks and potential strategies for minimizing them.
Hughes, C., Hand, A. J., & Aschenbrener, T. (2020). Asphalt Materials Quality Assurance Practices [Tech Brief] (Report No. FHWA-HIF-20-033). United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements. https://rosap.ntl.bts.gov/view/dot/89858
Hughes, Chuck, Adam J Hand, and Tim Aschenbrener. Asphalt Materials Quality Assurance Practices [Tech Brief]. Report no. FHWA-HIF-20-033. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2020. https://rosap.ntl.bts.gov/view/dot/89858.
Hughes, Chuck, et al. Asphalt Materials Quality Assurance Practices [Tech Brief]. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2020, Report no. FHWA-HIF-20-033, ROSA P. https://rosap.ntl.bts.gov/view/dot/89858.
Achieving appropriate in-place density is critical to the long-term performance of an asphalt pavement as a small change in place density can significantly affect the pavement service life. Thus, a Federal Highway Administration (FHWA) demonstration project was created for “Enhanced Durability of Asphalt Pavements through Increased In-place Pavemen
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Aschenbrener, T., Leiva, F., Tran, N. H., & Hand, A. J. T. (2020). FHWA Demonstration Project for Enhanced Durability of Asphalt Pavements through Increased In-place Pavement Density, Phase 3 (Report No. FHWA-HIF-20-003). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/51719
Aschenbrener, T., Fabricio Leiva, Nam H. Tran, and Adam J. T. Hand. FHWA Demonstration Project for Enhanced Durability of Asphalt Pavements through Increased In-place Pavement Density, Phase 3. Report no. FHWA-HIF-20-003. United States. Department of Transportation. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/51719.
Aschenbrener, T., et al. FHWA Demonstration Project for Enhanced Durability of Asphalt Pavements through Increased In-place Pavement Density, Phase 3. United States. Department of Transportation. Federal Highway Administration, 2020, Report no. FHWA-HIF-20-003, ROSA P. https://rosap.ntl.bts.gov/view/dot/51719.
Automated traffic signal performance measures (ATSPM) are an enabling technology that leverages data collection and analysis for proactive traffic signal system management. This report highlights the technical outreach undertaken by FHWA to assist States in meeting their Every Day Counts (EDC) Round 4 implementation objectives with respect to ATSPM
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Lattimer, C. R. (2020). Automated Traffic Signals Performance Measures (Report No. FWHA-HOP-20-002). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/54065
Lattimer, Charles R.. Automated Traffic Signals Performance Measures. Report no. FWHA-HOP-20-002. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/54065.
Lattimer, Charles R. Automated Traffic Signals Performance Measures. United States. Federal Highway Administration, 2020, Report no. FWHA-HOP-20-002, ROSA P. https://rosap.ntl.bts.gov/view/dot/54065.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty
2020-03-19
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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 (2020). Human Environment Digest: March 19, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty. https://rosap.ntl.bts.gov/view/dot/54976
United States. Federal Highway Administration. Office of Planning, Environment, and Realty. Human Environment Digest: March 19, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020. https://rosap.ntl.bts.gov/view/dot/54976.
United States. Federal Highway Administration. Office of Planning, Environment, and Realty Human Environment Digest: March 19, 2020. United States. Federal Highway Administration. Office of Planning, Environment, and Realty, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/54976.
Nondestructive deflection testing has played an important role in pavement evaluation, design, and management for several decades. During this period, the tool of choice for structural evaluation has been the falling weight deflectometer (FWD), due to its ability to accurately measure very small pavement deflections by means of a nondestructive loa
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Steele, D. A., Lee, H., & Beckemeyer, C. A. (2020). Development of the Rolling Wheel Deflectometer (RWD) (Report No. FHWA-DTFH-61-14-H00019). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/50699
Steele, Douglas A., Hyung Lee, and Curt A. Beckemeyer. Development of the Rolling Wheel Deflectometer (RWD). Report no. FHWA-DTFH-61-14-H00019. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/50699.
Steele, Douglas A., et al. Development of the Rolling Wheel Deflectometer (RWD). United States. Federal Highway Administration, 2020, Report no. FHWA-DTFH-61-14-H00019, ROSA P. https://rosap.ntl.bts.gov/view/dot/50699.
This describes a public survey of localized congestion problems.
United States. Federal Highway Administration (2020). FHWA Localized Bottleneck Reduction Program: Case Study - Arkansas. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/62998
United States. Federal Highway Administration. FHWA Localized Bottleneck Reduction Program: Case Study - Arkansas. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/62998.
United States. Federal Highway Administration FHWA Localized Bottleneck Reduction Program: Case Study - Arkansas. United States. Federal Highway Administration, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/62998.
This describes expedited improvement of a congested exit ramp as part of long-term phased construction.
United States. Federal Highway Administration (2020). FHWA Localized Bottleneck Reduction Program: Case Study - New Hampshire. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/63003
United States. Federal Highway Administration. FHWA Localized Bottleneck Reduction Program: Case Study - New Hampshire. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/63003.
United States. Federal Highway Administration FHWA Localized Bottleneck Reduction Program: Case Study - New Hampshire. United States. Federal Highway Administration, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/63003.
This describes restriping an interchange instead of rebuilding.
United States. Federal Highway Administration (2020). FHWA Localized Bottleneck Reduction Program: Case Study - Connecticut. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/63000
United States. Federal Highway Administration. FHWA Localized Bottleneck Reduction Program: Case Study - Connecticut. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/63000.
United States. Federal Highway Administration FHWA Localized Bottleneck Reduction Program: Case Study - Connecticut. United States. Federal Highway Administration, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/63000.
This describes a conversion of a freeway shoulder into an acceleration lane at former chokepoint at top of ramp entrance.
United States. Federal Highway Administration (2020). FHWA Localized Bottleneck Reduction Program: Case Study - Pennsylvania. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/63005
United States. Federal Highway Administration. FHWA Localized Bottleneck Reduction Program: Case Study - Pennsylvania. United States. Federal Highway Administration, 2020. https://rosap.ntl.bts.gov/view/dot/63005.
United States. Federal Highway Administration FHWA Localized Bottleneck Reduction Program: Case Study - Pennsylvania. United States. Federal Highway Administration, 2020, ROSA P. https://rosap.ntl.bts.gov/view/dot/63005.
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