United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements
2026-01-07
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ZIP
The Profile Viewer and Analyzer (ProVAL) is a software that was initially developed to provide a means to view and analyze pavement profiles efficiently and robustly, as part of the Federal Highway Administration (FHWA) smoothness initiative. ProVAL imports, displays, and analyzes the characteristics of pavement profiles from many different sources
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United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements (2026). Pavement Profile Viewer and Analyzer (ProVAL) Version 4.0.80 [supporting software]. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements. https://rosap.ntl.bts.gov/view/dot/89244
United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements. Pavement Profile Viewer and Analyzer (ProVAL) Version 4.0.80 [supporting software]. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2026. https://rosap.ntl.bts.gov/view/dot/89244.
United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements Pavement Profile Viewer and Analyzer (ProVAL) Version 4.0.80 [supporting software]. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/89244.
United States. Department of Transportation. Federal Highway Administration
2026-01-05
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Memoranda & Guidance
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PDF
On January 14, 2025, the Federal Highway Administration (FHWA) issued a final rule terminating its general waiver on manufactured products and establishing new Buy America requirements for manufactured products used in Federal-aid highway projects ("the Manufactured Products Final Rule"). The effective date of the Manufactured Products Final Rule i
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United States. Department of Transportation. Federal Highway Administration (2026). Questions and Answers (Q&As) on the Federal Highway Administration (FHWA) Manufactured Products Final Rule. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/93026
United States. Department of Transportation. Federal Highway Administration. Questions and Answers (Q&As) on the Federal Highway Administration (FHWA) Manufactured Products Final Rule. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/93026.
United States. Department of Transportation. Federal Highway Administration Questions and Answers (Q&As) on the Federal Highway Administration (FHWA) Manufactured Products Final Rule. United States. Department of Transportation. Federal Highway Administration, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/93026.
United States. Department of Transportation. Federal Highway Administration
2026-01-05
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Memoranda & Guidance
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PDF
The BABA, part of the Infrastructure Investment and Jobs Act, Pub. L. 117-58 (Nov. 15, 2021), establishes several procedural and substantive requirements with respect to Buy America. The procedural requirements under BABA, generally focused on Buy America implementation, include requirements for agencies to review existing Buy America preference re
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United States. Department of Transportation. Federal Highway Administration (2026). On or After October 23, 2023 and before March 20, 2025; Q&As for Infrastructure Investment and Jobs Act - Build America, Buy America Act and Implementation of the OMB Final Guidance in 2 CFR 184 and 200 For Federal Financial Assistance Programs. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/93029
United States. Department of Transportation. Federal Highway Administration. On or After October 23, 2023 and before March 20, 2025; Q&As for Infrastructure Investment and Jobs Act - Build America, Buy America Act and Implementation of the OMB Final Guidance in 2 CFR 184 and 200 For Federal Financial Assistance Programs. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/93029.
United States. Department of Transportation. Federal Highway Administration On or After October 23, 2023 and before March 20, 2025; Q&As for Infrastructure Investment and Jobs Act - Build America, Buy America Act and Implementation of the OMB Final Guidance in 2 CFR 184 and 200 For Federal Financial Assistance Programs. United States. Department of Transportation. Federal Highway Administration, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/93029.
United States. Department of Transportation. Federal Highway Administration
2026-01-05
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Memoranda & Guidance
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PDF
The FHWA's Buy America policies require a domestic manufacturing process for iron or steel products and manufactured products that are permanently incorporated in a Federal-aid highway construction project. Title 23 Section 313 provides that the Administrator may issue a waiver if, (1) the application of Buy America provisions would be inconsistent
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United States. Department of Transportation. Federal Highway Administration (2026). FHWA's Buy America Q and A for Federal-Aid Program. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/93027
United States. Department of Transportation. Federal Highway Administration. FHWA's Buy America Q and A for Federal-Aid Program. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/93027.
United States. Department of Transportation. Federal Highway Administration FHWA's Buy America Q and A for Federal-Aid Program. United States. Department of Transportation. Federal Highway Administration, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/93027.
United States. Department of Transportation. Federal Highway Administration
2026-01-05
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Memoranda & Guidance
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PDF
The BABA, part of the Infrastructure Investment and Jobs Act, Pub. L. 117-58 (Nov. 15, 2021), establishes several procedural and substantive requirements with respect to Buy America. The procedural requirements under BABA, generally focused on Buy America implementation, include requirements for agencies to review existing Buy America preference re
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United States. Department of Transportation. Federal Highway Administration (2026). On or After March 20, 2025: Q&As for Infrastructure Investment and Jobs Act Build America, Buy America Act and the Implementation of the OMB Final Guidance In 2 CFR Parts 184 and 200 for Federal Financial Assistance Programs. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/93030
United States. Department of Transportation. Federal Highway Administration. On or After March 20, 2025: Q&As for Infrastructure Investment and Jobs Act Build America, Buy America Act and the Implementation of the OMB Final Guidance In 2 CFR Parts 184 and 200 for Federal Financial Assistance Programs. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/93030.
United States. Department of Transportation. Federal Highway Administration On or After March 20, 2025: Q&As for Infrastructure Investment and Jobs Act Build America, Buy America Act and the Implementation of the OMB Final Guidance In 2 CFR Parts 184 and 200 for Federal Financial Assistance Programs. United States. Department of Transportation. Federal Highway Administration, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/93030.
United States. Department of Transportation. Federal Highway Administration
2026-01-05
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Memoranda & Guidance
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PDF
The BABA, part of the Infrastructure Investment and Jobs Act, Pub. L. 117-58 (Nov. 15, 2021), establishes several procedural and substantive requirements with respect to Buy America. The procedural requirements under BABA, generally focused on Buy America implementation, include requirements for agencies to review existing Buy America preference re
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United States. Department of Transportation. Federal Highway Administration (2026). Pre October 23, 2023: Q&As for Infrastructure Investment and Jobs Act - Build America, Buy America Act. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/93031
United States. Department of Transportation. Federal Highway Administration. Pre October 23, 2023: Q&As for Infrastructure Investment and Jobs Act - Build America, Buy America Act. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/93031.
United States. Department of Transportation. Federal Highway Administration Pre October 23, 2023: Q&As for Infrastructure Investment and Jobs Act - Build America, Buy America Act. United States. Department of Transportation. Federal Highway Administration, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/93031.
United States. Department of Transportation. Federal Highway Administration
2026-01-05
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Memoranda & Guidance
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PDF
The USDOT waiver exempts small projects and de minimis costs from Buy America requirements, applying to manufactured products and construction materials, with thresholds of $1 million or 5% of project costs and $500,000 in federal aid. Non-compliance is based on manufacturing location and component content, with tracking of project costs, change or
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United States. Department of Transportation. Federal Highway Administration (2026). Q&As for the Waiver of Buy America Requirements for De Minimis Costs and Small Grants on or After October 1, 2025. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/93032
United States. Department of Transportation. Federal Highway Administration. Q&As for the Waiver of Buy America Requirements for De Minimis Costs and Small Grants on or After October 1, 2025. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/93032.
United States. Department of Transportation. Federal Highway Administration Q&As for the Waiver of Buy America Requirements for De Minimis Costs and Small Grants on or After October 1, 2025. United States. Department of Transportation. Federal Highway Administration, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/93032.
United States. Department of Transportation. Federal Highway Administration
2026-01-05
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Memoranda & Guidance
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PDF
The USDOT waiver exempts certain FHWA projects from Buy America requirements if non-compliant materials are under $1 million or 5% of project costs, with specific rules for steel, iron, and manufactured products. It applies to awards after August 16, 2023 and before October 1, 2025, and requires tracking change orders, project costs, and federal as
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United States. Department of Transportation. Federal Highway Administration (2026). Q&As for the Waiver of Buy America Requirements for De Minimis Costs and Small Grants On or After August 16, 2023, And Before October 1, 2025. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/93033
United States. Department of Transportation. Federal Highway Administration. Q&As for the Waiver of Buy America Requirements for De Minimis Costs and Small Grants On or After August 16, 2023, And Before October 1, 2025. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/93033.
United States. Department of Transportation. Federal Highway Administration Q&As for the Waiver of Buy America Requirements for De Minimis Costs and Small Grants On or After August 16, 2023, And Before October 1, 2025. United States. Department of Transportation. Federal Highway Administration, 2026, ROSA P. https://rosap.ntl.bts.gov/view/dot/93033.
United States. Department of Transportation. Federal Highway Administration
2026-01-01
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PDF
The Federal Highway Administration (FHWA) has kicked off a research program to develop a scaled-down automation platform for demonstration and development. This system showcases the benefits of CDA and automation technologies and extends research capabilities in physical testing environments that are cost-friendly and more accessible. CDA 1Tenth to
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United States. Department of Transportation. Federal Highway Administration (2026). CDA 1Tenth: FHWA's Small-Scale Cooperative Driving Automation (CDA) Program [postcard] (Report No. FHWA-HRT-26-025). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/e7n0-vd14
United States. Department of Transportation. Federal Highway Administration. CDA 1Tenth: FHWA's Small-Scale Cooperative Driving Automation (CDA) Program [postcard]. Report no. FHWA-HRT-26-025. United States. Department of Transportation. Federal Highway Administration, 2026. https://doi.org/10.21949/e7n0-vd14.
United States. Department of Transportation. Federal Highway Administration CDA 1Tenth: FHWA's Small-Scale Cooperative Driving Automation (CDA) Program [postcard]. United States. Department of Transportation. Federal Highway Administration, 2026, Report no. FHWA-HRT-26-025, ROSA P. https://doi.org/10.21949/e7n0-vd14.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development
2026-01-01
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PDF
Pedestrians and bicyclists face challenges navigating intersections safely. Limited lines of sight and blind spots can make detecting pedestrians difficult for drivers and automated vehicles; each year, pedestrians and bicyclists account for roughly 20 percent of all traffic fatalities. Because pedestrians and bicyclists are especially at risk for
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United States. Federal Highway Administration. Office of Safety and Operations Research and Development (2026). Perception Sharing for Cooperative Driving Automation (CDA) Using Sensor-Data-Sharing Messages [fact sheet] (Report No. FHWA-HRT-26-028). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://doi.org/10.21949/ypw2-wn65
United States. Federal Highway Administration. Office of Safety and Operations Research and Development. Perception Sharing for Cooperative Driving Automation (CDA) Using Sensor-Data-Sharing Messages [fact sheet]. Report no. FHWA-HRT-26-028. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026. https://doi.org/10.21949/ypw2-wn65.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development Perception Sharing for Cooperative Driving Automation (CDA) Using Sensor-Data-Sharing Messages [fact sheet]. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026, Report no. FHWA-HRT-26-028, ROSA P. https://doi.org/10.21949/ypw2-wn65.
United States. Department of Transportation. Federal Highway Administration
2026-01-01
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PDF
This form is the cover page for submissions to the 2026 Excellence in Highway Safety Data Award.
United States. Department of Transportation. Federal Highway Administration (2026). 2026 HSIS Excellence in Highway Safety Data Award: Research Paper Submission Cover Page (Report No. FHWA-HRT-26-027). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/v160-ee53
United States. Department of Transportation. Federal Highway Administration. 2026 HSIS Excellence in Highway Safety Data Award: Research Paper Submission Cover Page. Report no. FHWA-HRT-26-027. United States. Department of Transportation. Federal Highway Administration, 2026. https://doi.org/10.21949/v160-ee53.
United States. Department of Transportation. Federal Highway Administration 2026 HSIS Excellence in Highway Safety Data Award: Research Paper Submission Cover Page. United States. Department of Transportation. Federal Highway Administration, 2026, Report no. FHWA-HRT-26-027, ROSA P. https://doi.org/10.21949/v160-ee53.
United States. Department of Transportation. Federal Highway Administration
2026-01-01
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PDF
This postcard is to announce the Excellence in Highway Safety Data Awards Student Contest 2026. The intended audience is all undergraduate, graduate, and community college students with a passion for impactful research and data analysis.
United States. Department of Transportation. Federal Highway Administration (2026). Excellence in Highway Safety Data Awards [2026 Postcard] (Report No. FHWA-HRT-26-006). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/88932
United States. Department of Transportation. Federal Highway Administration. Excellence in Highway Safety Data Awards [2026 Postcard]. Report no. FHWA-HRT-26-006. United States. Department of Transportation. Federal Highway Administration, 2026. https://rosap.ntl.bts.gov/view/dot/88932.
United States. Department of Transportation. Federal Highway Administration Excellence in Highway Safety Data Awards [2026 Postcard]. United States. Department of Transportation. Federal Highway Administration, 2026, Report no. FHWA-HRT-26-006, ROSA P. https://rosap.ntl.bts.gov/view/dot/88932.
United States. Department of Transportation. Federal Highway Administration
2026-01-01
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PDF
With the Human Factors Laboratory, located at the Federal Highway Administration's (FHWA's) Turner-Fairbank Highway Research Center in McLean, VA, the Human Factors Team aims to improve transportation safety by strengthening the understanding of user needs and making transportation-related recommendations for roadway design, signage, and advanced t
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United States. Department of Transportation. Federal Highway Administration (2026). HF Human Factors [postcard] (Report No. FHWA-HRT-26-022). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/fh13-x255
United States. Department of Transportation. Federal Highway Administration. HF Human Factors [postcard]. Report no. FHWA-HRT-26-022. United States. Department of Transportation. Federal Highway Administration, 2026. https://doi.org/10.21949/fh13-x255.
United States. Department of Transportation. Federal Highway Administration HF Human Factors [postcard]. United States. Department of Transportation. Federal Highway Administration, 2026, Report no. FHWA-HRT-26-022, ROSA P. https://doi.org/10.21949/fh13-x255.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development
2026-01-01
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PDF
The U.S. Department of Transportation (USDOT) provides infrastructure-focused tools that offer advantages to transportation systems and their users. These tools help optimize traffic flow and management, improve access for road users, collect valuable data, and support academic institutions in transportation technology education. These open-source
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United States. Federal Highway Administration. Office of Safety and Operations Research and Development (2026). Saxton Transportation Operations Laboratory Web-Based and Open-Source Tools for Connected and Automated Vehicle (CAV) Research and Deployment [fact sheet] (Report No. FHWA-HRT-26-017). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://doi.org/10.21949/25xn-9230
United States. Federal Highway Administration. Office of Safety and Operations Research and Development. Saxton Transportation Operations Laboratory Web-Based and Open-Source Tools for Connected and Automated Vehicle (CAV) Research and Deployment [fact sheet]. Report no. FHWA-HRT-26-017. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026. https://doi.org/10.21949/25xn-9230.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development Saxton Transportation Operations Laboratory Web-Based and Open-Source Tools for Connected and Automated Vehicle (CAV) Research and Deployment [fact sheet]. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026, Report no. FHWA-HRT-26-017, ROSA P. https://doi.org/10.21949/25xn-9230.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development
2026-01-01
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PDF
The U.S. Department of Transportation’s (USDOT) open-source traveler information message (TIM) Creator tool simplifies the creation of SAE International® J2735™ TIM messages that support connected and automated vehicle (CAV) applications. TIMs are used to communicate roadway and traveler information similar to the information from road signs or dyn
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United States. Federal Highway Administration. Office of Safety and Operations Research and Development (2026). A Web-Based and Open-Source Tool to Simplify Traveler Information Message Development for Connected Infrastructure [fact sheet] (Report No. FHWA-HRT-26-018). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://doi.org/10.21949/1sxq-4x30
United States. Federal Highway Administration. Office of Safety and Operations Research and Development. A Web-Based and Open-Source Tool to Simplify Traveler Information Message Development for Connected Infrastructure [fact sheet]. Report no. FHWA-HRT-26-018. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026. https://doi.org/10.21949/1sxq-4x30.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development A Web-Based and Open-Source Tool to Simplify Traveler Information Message Development for Connected Infrastructure [fact sheet]. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026, Report no. FHWA-HRT-26-018, ROSA P. https://doi.org/10.21949/1sxq-4x30.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development
2026-01-01
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PDF
The U.S. Department of Transportation’s (USDOT) open-source MAP/road geometry attributes (RGA) Message Creator tool simplifies the development of SAE International® J2735™ MAP and J2945/A™ RGA messages to support connected and automated infrastructure deployment. MAP messages(2) define intersections and segment geometry, whereas RGA messages descri
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United States. Federal Highway Administration. Office of Safety and Operations Research and Development (2026). A Web-Based and Open-Source Tool to Simplify MAP and RGA Message Development for Connected Infrastructure [fact sheet] (Report No. FHWA-HRT-26-019). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://doi.org/10.21949/rf0m-2e87
United States. Federal Highway Administration. Office of Safety and Operations Research and Development. A Web-Based and Open-Source Tool to Simplify MAP and RGA Message Development for Connected Infrastructure [fact sheet]. Report no. FHWA-HRT-26-019. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026. https://doi.org/10.21949/rf0m-2e87.
United States. Federal Highway Administration. Office of Safety and Operations Research and Development A Web-Based and Open-Source Tool to Simplify MAP and RGA Message Development for Connected Infrastructure [fact sheet]. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2026, Report no. FHWA-HRT-26-019, ROSA P. https://doi.org/10.21949/rf0m-2e87.
Autonomous vehicle (AV) deployment is accelerating, but AV behavior remains poorly understood. Infrastructure planners and operators lack confidence in forecasting how AVs will interact with existing infrastructure (e.g., traffic lights). Current studies focus mainly on car-following and lane-changing maneuvers on freeways and highways, with less s
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Li, Z., Li, Y., Li, Q., Yao, H., Li, X., Hourdos, J., & McHale, G. (2026). Behavioral Analysis and Impact Assessment of Automated Driving Systems' Interaction With Traffic Lights [Brochure] (Report No. FHWA-HRT-26-034). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/hp3f-dr96
Li, Zheng, Yang Li, Qianwen Li, Handong Yao, Xiaopeng Li, John Hourdos, and Gene McHale. Behavioral Analysis and Impact Assessment of Automated Driving Systems' Interaction With Traffic Lights [Brochure]. Report no. FHWA-HRT-26-034. United States. Department of Transportation. Federal Highway Administration, 2026. https://doi.org/10.21949/hp3f-dr96.
Li, Zheng, et al. Behavioral Analysis and Impact Assessment of Automated Driving Systems' Interaction With Traffic Lights [Brochure]. United States. Department of Transportation. Federal Highway Administration, 2026, Report no. FHWA-HRT-26-034, ROSA P. https://doi.org/10.21949/hp3f-dr96.
Prior studies report conflicting impacts of autonomous vehicles (AVs). A study by Li et al. suggests AVs may engage in riskier behaviors compared with human-driven vehicles. A study by Morando et al. highlights AV potential to enhance safety. A better understanding of AV behaviors is crucial for safety. This goal calls for an investigation using re
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Wang, X., Li, Q., Yao, H., Hourdos, J., & McHale, G. (2026). Modeling Autonomous Driving Systems-Equipped Vehicle Interactions With Traffic Signs [Brochure] (Report No. FHWA-HRT-26-035). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/qhyv-yk59
Wang, Xuan, Qianwen Li, Handong Yao, John Hourdos, and Gene McHale. Modeling Autonomous Driving Systems-Equipped Vehicle Interactions With Traffic Signs [Brochure]. Report no. FHWA-HRT-26-035. United States. Department of Transportation. Federal Highway Administration, 2026. https://doi.org/10.21949/qhyv-yk59.
Wang, Xuan, et al. Modeling Autonomous Driving Systems-Equipped Vehicle Interactions With Traffic Signs [Brochure]. United States. Department of Transportation. Federal Highway Administration, 2026, Report no. FHWA-HRT-26-035, ROSA P. https://doi.org/10.21949/qhyv-yk59.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2026-01-01
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PDF
Data collected by the Long-Term Pavement Performance (LTPP) program has been used to develop the world’s most comprehensive source of in-service pavement performance information.(1) When established, the mission of the LTPP program was to collect and store performance data from a large number of in-service highways, analyze these data to describe a
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2026). Long-Term Pavement Performance Program Updates on Accomplishments and Benefits [research note] (Report No. FHWA-HRT-26-021). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://doi.org/10.21949/f6k1-7z82
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. Long-Term Pavement Performance Program Updates on Accomplishments and Benefits [research note]. Report no. FHWA-HRT-26-021. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2026. https://doi.org/10.21949/f6k1-7z82.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Long-Term Pavement Performance Program Updates on Accomplishments and Benefits [research note]. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2026, Report no. FHWA-HRT-26-021, ROSA P. https://doi.org/10.21949/f6k1-7z82.
United States. Department of Transportation. Federal Highway Administration
2026-01-01
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PDF
Microscopic simulation is a valuable tool for traffic system analysis and design. Car-following models’ characteristics and parametric distributions dictate safety and mobility performance of traffic streams.
United States. Department of Transportation. Federal Highway Administration (2026). A Data-Driven Comparison of Car-Following Behaviors of Autonomous and Human-Driven Vehicles and Their Traffic Flow Impacts Under Naturalistic Traffic Conditions [brochure] (Report No. FHWA-HRT-26-036). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/z9f1-m111
United States. Department of Transportation. Federal Highway Administration. A Data-Driven Comparison of Car-Following Behaviors of Autonomous and Human-Driven Vehicles and Their Traffic Flow Impacts Under Naturalistic Traffic Conditions [brochure]. Report no. FHWA-HRT-26-036. United States. Department of Transportation. Federal Highway Administration, 2026. https://doi.org/10.21949/z9f1-m111.
United States. Department of Transportation. Federal Highway Administration A Data-Driven Comparison of Car-Following Behaviors of Autonomous and Human-Driven Vehicles and Their Traffic Flow Impacts Under Naturalistic Traffic Conditions [brochure]. United States. Department of Transportation. Federal Highway Administration, 2026, Report no. FHWA-HRT-26-036, ROSA P. https://doi.org/10.21949/z9f1-m111.
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