This report synthesizes key findings and trends from the 2017 Statewide Long-Range Transportation Plan (SLRTP) Database, which represents key observations identified through a review of all 52 SLRTPs and Statewide Transportation Improvement Programs (STIPs) published as of December 31, 2016. The research analyzed SLTRPs and STIPs to provide example
...
Thin concrete overlays have been successfully used in the United States for extending the life of existing concrete, asphalt, or composite pavements. These overlays can accommodate a variety of needs, such as extending performance lives by as much as 15 to 20 years, meeting rapid construction requirements, and conforming to any specific traffic man
...
The rehabilitation and reconstruction of existing highway pavements require the optimization of the construction operations. One important aspect of this is to provide defined and controlled traffic patterns that ensure the safety of both the traveling public and the work crews. Effective work zone traffic management (WZTM) is a critical part of an
...
Bridge decks are commonly rehabilitated using overlays depending on the cause of deck deterioration, available budget, and desired service life of the rehabilitated structure. One emerging solution for bridge deck rehabilitation is thin, bonded ultra-high performance concrete (UHPC) overlays. As an overlay material, UHPC can provide both structural
...
This document presents the user guide for the Long-Term Pavement Performance (LTPP) Web-based tool used to select asphalt binders. LTPPBind Online was developed to help State transportation departments select the most suitable performance-grade binder for a particular site based on the American Association of State and Highway Transportation Offici
...
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2017-10-01
|
PDF
The Federal Highway Administration’s (FHWA’s) Long-Term Bridge Performance (LTBP) Program is a long-term research effort, authorized by the U.S. Congress under the Safe, Accountable, Flexible, Efficient Transportation Equity Act legislation, to collect high-quality bridge data from a representative sample of highway bridges nationwide that will hel
...
From the start of the Long-Term Pavement Performance (LTPP) Program, the longitudinal profiles along the two wheelpaths at test sections have been collected using an inertial profiler. In December 1996, starting with the K.J. Law T-6600 inertial profiler, all profilers used in the LTPP Program have collected profile data along the center of the lan
...
The objectives of this research study were to: (1) assess whether detailed fluid structure interaction (FSI) modeling can inform evaluation of rock riprap movement for both the analysis of existing riprap aprons and for the design of new riprap aprons; and (2) develop recommendations for the design, installation, and monitoring of riprap aprons at
...
The Federal Highways Administration (FHWA) sponsors a Technical Assistance (TA) effort to support states in applying Context Sensitive Solutions (CSS) to challenges they face in the transportation sector. Each state participating in the TA effort is invited to identify one issue to tackle using a CSS approach, with FHWA assistance. Participating st
...
The Federal Highways Administration (FHWA) sponsors a Technical Assistance (TA) effort to support states in applying Context Sensitive Solutions (CSS) to challenges they face in the transportation sector. Each state participating in the TA effort is invited to identify one issue to tackle using a CSS approach, with FHWA assistance. Participating st
...
This Manual provides four design examples illustrating the application of the strut-and-tie method for a variety of structural configurations, including a simply-supported deep beam, a cantilever bent cap, an inverted-tee moment frame straddle bent cap, and a drilled shaft footing. Each design example is based on the 8th Edition of the AASHTO LRFD
...
Transportation systems management and operations, or TSMO, encompasses a broad set of strategies that aim to optimize the safe, efficient, and reliable use of existing and planned transportation infrastructure for all modes. TSMO is undertaken from a systems perspective, which means that these strategies are coordinated with related strategies and
...
United States. Department of Transportation. Federal Highway Administration. Office of Safety
2017-10-01
|
PDF
Traffic signal backplates—thin plates of material that surround traffic signal indication light arrays—are intended to improve the visibility of a traffic signal by providing a consistent and controlled-contrast background. Attempts to further enhance the visibility and conspicuity of traffic signals have led to the addition of narrow strips of ret
...
The purpose of this guidance document is to provide a fundamental explanation of the "decision support system" (DSS) concept and the relationship of DSS systems and business rules to the integrated corridor management (ICM) community. The document will provide examples and background within and beyond transportation, as well as a clearly organized
...
This primer aims to assist States and MPOs with the implementation of performance-based freight planning and programming, as established under MAP-21 and the FAST Acts, by recommending freight performance measurement practices and appropriate performance measures. The primer provides a comprehensive list of freight performance measures with their a
...
The Federal Highway Administration's Road Weather Management Program (RWMP) assesses its progress toward meeting programmatic objectives through established performance measures. Assessments have been completed and documented in 2009, 2012, and 2015, and this update is the next iteration of this periodic review. While previous updates reported each
...
United States. Federal Highway Administration. Road Weather Management Program
2017-10-01
|
PDF
For the past 10 years, the Road Weather Management Program (RWMP) has periodically evaluated its effectiveness in helping improve the transportation system's performance during adverse weather using sources that include program records, literature reviews, Internet searches, and State DOT surveys.1 To date, four assessments have been conducted and
...
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. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2017-10-01
|
PDF
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
...
The Federal Highway Administration's (FHWA's) Fostering Multimodal Connectivity Newsletter is intended to provide transportation professionals with real-world examples of ways that multimodal transportation investments promote economic revitalization, provide access to jobs, and achieve safer communities through support of accelerated project deliv
...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.