This report is part of the Human Factors for Connected Vehicles (HFCV) program, whose goal is to minimize driver workload by eliminating connected vehicle (CV) device-related distractions. The research described in this document is part of an effort to develop initial design considerations for vehicle-to-pedestrian (V2P) safety messages provided to
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United States. Federal Highway Administration. Office of International Programs
2022-02-01
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The Office of International Programs works to discover, share, and promote global best practices and new technologies that improve the safety and efficiency of highway infrastructure. Our understanding of cultural and political nuances and differences between nations and our expertise in managing global relationships foster a culture of collaborati
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United States. Department of Transportation. Federal Highway Administration
2022-02-01
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The BIL continues to allocate funds for a highway program in the Commonwealth of Puerto Rico. It also continues to allocate funds to assist the governments of the U.S. territories (American Samoa, the Commonwealth of the Northern Mariana Islands, Guam, and the U.S. Virgin Islands) in constructing and improving a system of arterial and collector hig
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The objective of this document is to provide a rationale for conducting risk assessment of Post-Tensioning (PT) tendons to aid designers in the selection of appropriate corrosion protection strategies for PT systems in bridges. The risk assessment is intended to prioritize the need for protective technologies and processes considering the likelihoo
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This research summary report describes research carried out to develop an integrated survey methodology and instrument to support the collection of freight movement data. The researchers leveraged the Future Mobility Sensing (FMS) framework, which combines tracking and sensing data with machine-learning algorithms on the back end and user participa
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Since 2006, the Federal Highway Administration (FHWA) Road Weather Management Program (RWMP) has conducted a periodic assessment of program effectiveness in improving the performance of the transportation system during adverse weather conditions. The RWMP assessments of program performance were conducted and documented in 2009, 2012, 2015, 2017, an
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The purpose of this Tech Brief is to describe the use of recycled concrete aggregate (RCA) in concrete paving mixtures and identify considerations for its use in highway infrastructure. The document is intended for highway agency and contractor engineers.
This case study presents a safety analysis performed by the Texas Department of Transportation (TxDOT) for an Interstate Access Justification Report. The Interstate 37 (I-37) corridor is an important freight route, critical hurricane evacuation linkage, and the only crossing of the Nueces River within 25 miles. This corridor is part of the National
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Partial-depth precast concrete deck panels (PDDPs) are relatively thin precast prestressed concrete panels that span between girders which combine to act compositely with a cast-in-place (CIP) concrete topping to provide the full structural thickness of a bridge deck. PDDPs may have some advantages including faster and safer construction, ease of d
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The Federal Highway Administration (FHWA) and Traffic Analysis and Simulation Pooled Fund Study sponsored a research project on multiresolution modeling (MRM). The project intends to develop consistent definitions and a unified modeling framework for transportation professionals to help them better understand the opportunities and challenges associ
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United States. Department of Transportation. Federal Highway Administration
2022-02-01
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The BIL establishes a National Electric Vehicle Infrastructure Formula Program ("NEVI Formula") to provide funding to States to strategically deploy electric vehicle (EV) charging infrastructure and to establish an interconnected network to facilitate data collection, access, and reliability.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-02-01
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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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Scenario Manager and Vehicle Trajectory Processor (NeXTA) are software products developed under the second Strategic Highway Research Program (SHRP2) Project L04for facilitating the incorporation of reliability performance measures into operations and planning tools. Pilot test sites in both Portland, Oregon and Phoenix, Arizona were used in conjun
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This manual describes operational procedures for collecting longitudinal profile, macrotexture, and transverse profile data for the Long-Term Pavement Performance program using a High-Speed Survey Vehicle. This manual also contains procedures for measuring the longitudinal and transverse profiles of the pavement using a Dipstick® and the longitudin
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This case study summarizes a safety analysis conducted by the Federal Highway Administration (FHWA) Geometric Design Lab (GDL), in collaboration with the Alabama Department of Transportation (ALDOT) and the FHWA Alabama Division. GDL used the Interactive Highway Safety Design Model (IHSDM) software to assess the safety performance of W South Boulev
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United States. Federal Highway Administration. Center for Accelerating Innovation
2022-02-01
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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.
Ultra-high performance concrete (UHPC) is a class of cement-based composite materials with enhanced properties as compared to conventional concrete. There is growing interest, both in the United States and worldwide, in using UHPC to address needs in the bridge sector (Graybeal et al. 2020). Appropriate use of UHPC must be founded on common definit
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-01-30
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The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by
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United States. Department of Transportation. Federal Highway Administration
2022-01-28
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FHWA provides Applicability Tables, which contain lists of State DOTs and MPOs who are required to establish targets and report progress for the performance measures related to the CMAQ Program.
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