United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
A leading pedestrian interval (LPI) gives pedestrians the opportunity to enter an intersection 3-7 seconds before vehicles are given a green indication. With this head start, pedestrians can better establish their presence in the crosswalk before vehicles have priority to turn left. LPIs provide the following benefits: Increased visibility of cross
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In South Dakota, freight growth is closely linked to agricultural production. Recent advancements in plant genetics and technology have boosted production of many of the State’s key crops. The South Dakota Department of Transportation (SDDOT) takes the movement of agricultural goods into consideration as it invests in expanding and improving transp
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In 2009, the Federal Highway Administration (FHWA) launched Every Day Counts (EDC) in cooperation with the American Association of State Highway and Transportation Officials (AASHTO) to speed up the delivery of highway projects and to address the challenges presented by limited budgets. EDC is a State-based model to identify and rapidly deploy prov
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2017-08-01
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On a monthly basis, each State is required to report to the Federal Highway Administration (FHWA), the amount of gallons taxed by that state. This data is analyzed and compiled by FHWA staff. The data on the amount of on-highway fuel use for each State is then used to attribute federal revenue to each State. Yearly, the FHWA, Office of Policy, prov
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
USLIMITS2 is a free, web-based tool designed to help practitioners assess and establish safe, reasonable, and consistent speed limits for specific segments of roadway. It is applicable to all types of facilities, from rural and local roads and residential streets to urban freeways.
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
Median barriers are longitudinal barriers that separate opposing traffic on a divided highway and are designed to redirect vehicles striking either side of the barrier. Median barriers significantly reduce the severity of cross-median crashes, which are attributed to the relatively high speeds that are typical on divided highways. Approximately 8 p
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
SafetyEdgeSM technology shapes the edge of the pavement at approximately 30 degrees from the pavement cross slope during the paving process. This systemic safety treatment eliminates the vertical drop-off at the pavement edge, allowing drifting vehicles to return to the pavement safely. It has minimal effect on asphalt pavement project cost with th
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
While most transportation agencies have established traditional safety review procedures, a road safety audit (RSA) is unique. RSAs are performed by a multidisciplinary team independent of the project. RSAs consider all road users, account for human factors and road user capabilities, are documented in a formal report, and require a formal response
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This evaluation of the National Household Travel Survey (NHTS) Program addresses three key questions: 1) What is the breadth and depth of NHTS usage? 2) What impact does the NHTS Program have on policy, project, or regulatory decision making? 3) How responsive is the NHTS Program to its user community? Although it is difficult to trace the specific
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
At a signalized intersection, the yellow change interval is the length of time that the yellow signal indication is displayed following a green signal indication. The yellow signal confirms to motorists that the green has ended and that a red will soon follow.
This document serves as the Final Evaluation Report for the Interdisciplinary TIM Training as captured through use of the TIM Training Post-Course Assessment Tool. The tool is used to assist the Federal Highway Administration (FHWA), State and local agencies responsible for TIM operations, with the ability to assess student learning and the impacts
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
Access management refers to the design, application, and control of entry and exit points along a roadway. This includes intersections with other roads and driveways that serve adjacent properties. Thoughtful access management along a corridor can simultaneously enhance safety for all modes, facilitate walking and biking, and reduce trip delay and
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-08-01
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PDF
The modern roundabout is a type of circular intersection configuration that safely and efficiently moves traffic through an intersection. Roundabouts feature channelized approaches and a center island that results in lower speeds and fewer conflict points. At roundabouts, entering traffic yields to vehicles already circulating, leading to improved
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When the Delaware Valley Regional Planning Commission (DVRPC) launched the PhillyFreightFinder application in 2013, it established a structured program to collect and integrate freight-related data into a single location. The launch of PhillyFreightFinder represented the first step in DVRPC’s undertaking to develop a centralized data clearinghouse
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United States. Federal Highway Administration. Office of Policy & Governmental Affairs
2017-08-01
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The FAST Act establishes the Nationally Significant Freight and Highway Projects (NSFHP) program to provide financial assistance—competitive grants, known as INFRA grants, or credit assistance—to nationally and regionally significant freight and highway projects that align with the program goals to: improve the safety, efficiency, and reliability o
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This document is a technical summary of the Federal Highway Administration (FHWA) report "Safety Evaluation of Multiple Strategies at Signalized Intersections" (FHWA-HRT-17-062).
In South Dakota, freight growth is closely linked to agricultural production. Recent advancements in plant genetics and technology have boosted production of many of the State’s key crops. The South Dakota Department of Transportation (SDDOT) takes the movement of agricultural goods into consideration as it invests in expanding and improving transp
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The primary objective of AMS Testbed project is to develop multiple simulation Testbeds/transportation models to evaluate the impacts of DMA connected vehicle applications and the active and dynamic transportation management (ATDM) strategies. Through this project, six virtual testbeds were developed and used for DMA and ATDM evaluation. The testbe
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United States. Federal Highway Administration. Office of Operations Research and Development
2017-08-01
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The Office of Operations Research and Development (R&D) produces technology and tools to improve transportation system productivity, efficiency, and performance by proactively anticipating congestion and managing traffic.
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