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The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations. Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.

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Showing 7681 - 7700 of 36114 results
  • Identifying transportation solutions that promote healthy aging for Texas final report
    Identifying transportation solutions that promote healthy aging for Texas : final report.
    Ettelman, Ben ;
    Moran, Maarit
    2017-09-01 | PDF
    As the population of Texans who are aging continues to grow, the role that transportation playsin the promotion of healthy aging is useful information for policy makers to plan and provide forthe safe and healthy aging of Texas’s population.Transportation is a primary consideration to ensuring that Texas is well prepared to provide forthe needs of ...
  • Collecting Networkwide Bicycle and Pedestrian Data A Guidebook for When and Where to Count
    Collecting Network-wide Bicycle and Pedestrian Data: A Guidebook for When and Where to Count
    Johnstone, Dylan ;
    Nordback, Krista
    2017-09-01 | PDF
    Across the United States, jurisdictions are investing more in bicycle and pedestrian infrastructure, which requires non-motorized traffic volume data. While some agencies use automated counters to collect continuous and short duration counts, the most common type of bicycle and pedestrian counting is still manual counting. The purpose of this guide ...
  • Evaluation of the GPSAVL systems for snow and ice operations resource management
    Evaluation of the GPS/AVL systems for snow and ice operations resource management.
    Schneider, William ;
    Crow, Mallory
    2017-09-01 | PDF
    Snow and ice management is the single largest expenditure in the maintenance budget for the Ohio Department of Transportation (ODOT) with an annual cost including labor, equipment, and materials reaching approximately $86 million (ODOT, 2013). One method to increase the efficiency of operations is the implementation of a Global Positioning System ( ...
  • Modeling Tamping Recovery of Track Geometry Using the CopulaBased Approach
    Modeling Tamping Recovery of Track Geometry Using the Copula-Based Approach
    Martey, Emmanuel Nii ;
    Attoh-Okine, Nii O
    2017-09-01 | PDF
    Assessing and maintaining track geometry within acceptable limits are key components of railroad infrastructure maintenance operations. Track geometry conditions have a significant influence on rider comfort and safety. To maintain the ride quality and safety of the track, maintenance activities pertaining to track geometry, such as tamping, are pe ...
  • Implementation guidance for accelerated bridge construction in South Dakota
    Implementation guidance for accelerated bridge construction in South Dakota
    Pei, Shiling ;
    Wehbe, Nadim I.
    2017-09-01 | PDF
    A study was conducted to investigate implementation of accelerated bridge construction (ABC) in South Dakota. Accelerated bridge construction is defined as construction practices that employ innovative techniques to reduce on-site construction time and interruption to traffic. The main objective of this study was to implement a systematic method fo ...
  • Field Usage of Alternative Deicers for Snow and Ice Control Transportation Research Synthesis
    Field Usage of Alternative Deicers for Snow and Ice Control : Transportation Research Synthesis.
    Western Transportation Institute
    2017-09-01 | PDF
    This Transportation Research Synthesis (TRS) summarizes non-chloride based deicers available on the market at this time, including acetate, formate, glycol, and succinate based deicing products. This report explores their feasibility for use as alternatives to chloride based deicers, and identifies next steps to determine if a non-chloride based de ...
    Supporting Files
  • Thermal integrity profiling for augered castinplace piles implementation plan summary
    Thermal integrity profiling for augered cast-in-place piles – implementation plan : summary.
    Mullins, Gray
    2017-09-01 | PDF
    Auger-cast-in-place (ACIP) piles are created when an auger the diameter and length of the desired pile is drilled into the ground. Concrete is pumped through the central axis of the auger as it is withdrawn, pulling up excavated soil as concrete fills the shaft. Steel reinforcement is placed in the still-fluid concrete. The entire process is conduc ...
  • Evaluation of HeadLight An EConstruction Inspection Technology research project capsule
    Evaluation of HeadLight: An E-Construction Inspection Technology : research project capsule
    Rupnow, Tyson D.
    2017-09-01 | PDF
    Project delivery and inspection are challenging, resource-intensive jobs. The quality/accuracy of collected field data is crucial. The Louisiana Department of Transportation and Development (DOTD) still relies on a primarily paper-based process for field data collection. The electronic collection and utilization of this data from the beginning to e ...
  • Enhanced Capabilities of BullReporter and BullConverter final report
    Enhanced Capabilities of BullReporter and BullConverter : final report.
    Kwon, Taek M.
    2017-09-01 | PDF
    Bull-Converter/Reporter is a software stack for Weigh-In-Motion (WIM) data analysis and reporting tools developed by the University of Minnesota Duluth for the Minnesota Department of Transportation (MnDOT) to resolve problems associated with deployment of multi-vendor WIM systems in a statewide network. These data tools have been used by the MnDOT ...
  • Analysis of Traffic Crash Data in Kentucky 20122016
    Analysis of Traffic Crash Data in Kentucky (2012-2016).
    Green, Eric R. ;
    Agent, Kenneth R.
    2017-09-01 | PDF
    This report documents an analysis of traffic crash data in Kentucky for the years of 2012 through 2016. A primary objective of this study was to determine average crash statistics for Kentucky highways. Rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure. Average and critical n ...
    Supporting Files
  • Application of IHSDM KY 30 case study final report
    Application of IHSDM: KY 30 case study : final report.
    Staats, William ;
    Kirk, Adam
    2017-09-01 | PDF
    A section of KY 30 in Jackson and Owsley Counties is targeted for redesign to provide a safer and more efficient corridor that will support economic activity in eastern Kentucky. Data for the existing KY 30 alignment and eight alternative alignments developed by HMB Professional Engineers Inc. were provided to researchers at the Kentucky Transporta ...
  • Exploration of Drone and Remote Sensing Technologies in Highway Embankment Monitoring and Management Phase I research project capsule
    Exploration of Drone and Remote Sensing Technologies in Highway Embankment Monitoring and Management (Phase I) : research project capsule.
    Zhang, Zhongjie
    2017-09-01 | PDF
    Over time, many Louisiana highway embankments have experienced surface sliding failures, a safety issue causing traffic disruptions. Since no advance-warning system is available for these highway embankment failures, the Louisiana Department of Transportation and Development (DOTD) can only respond after failure with costly remediation. Development ...
  • Dynamic assessment of bridge deck performance considering realistic bridgetraffic interaction
    Dynamic assessment of bridge deck performance considering realistic bridge-traffic interaction
    Zhou, Yufen ;
    Chen, Suren
    2017-09-01 | PDF
    Concrete bridge decks are directly exposed to daily traffic loads and may experience some surface cracking caused by excessive stress or fatigue accumulation, which requires repair or replacement. Among typical bridges in North America, bridge decks are considered the most expensive component to construct and repair, not only because of direct repa ...
  • Environmental Suitability of Weathering Steel Structures in Florida Materials Selection Phase summary
    Environmental Suitability of Weathering Steel Structures in Florida – Materials Selection, Phase : summary.
    Simmons, Ronald ;
    Granata, Richard
    2017-09-01 | PDF
    The results of this project may increase the opportunities to use weathering steel in transportation structures, which offers significant cost savings due to lower maintenance and longer service life.
  • Enhancing GDOTs Computerized Pavement Condition Evaluation System for Pavement Condition Survey
    Enhancing GDOT’s Computerized Pavement Condition Evaluation System for Pavement Condition Survey
    Yichang, Tsai ;
    Wang, Zhaohua
    2017-09-01 | PDF
    The Computerized Pavement Condition Evaluation System (COPACES) is a software tool that has been used by the Georgia Department of Transportation (GDOT) for its statewide pavement condition survey since the late 1990s. The previous version was released in 2008, which ran on Windows XP laptops. To improve the productivity, this project developed a n ...
  • Truck Routing Issues
    Truck Routing Issues
    Agent, Kenneth R.
    2017-09-01 | PDF
    Commercial vehicle drivers selecting inappropriate routes where the handling characteristics (e.g., off-tracking) and dimensions of their trucks are not consistent with a roadway’s cross section and geometrics can damage the vehicle, harm adjacent property, or result in crashes. Analysis of crashes that involve the use of inappropriate routes indic ...
  • CFRP strengthening of KY 583 over the Bluegrass Parkway Bridge in Hardin County
    CFRP strengthening of KY 583 over the Bluegrass Parkway Bridge in Hardin County.
    Peiris, Abheetha ;
    Harik, Issam E.
    2017-09-01 | PDF
    The report details the planning, design, and construction of the retrofit measure on the KY 583 Bridge (047B00072N), which traverses the Bluegrass Parkway in Hardin County, Kentucky. Reinforced concrete girders within the span over the eastbound Bluegrass Parkway of the bridge had cracks that led to concrete delamination and deterioration of the gi ...
  • Validity of multiple stress creep recovery MSCR test for DOTD asphalt binder specification technical summary
    Validity of multiple stress creep recovery (MSCR) test for DOTD asphalt binder specification : technical summary.
    Kabir, Md Sharear
    2017-09-01 | PDF
    Higher traffic coupled with heavier loads led the asphalt industry to introduce polymer-modified binders to enhance the durability and strength of hot mix asphalt (HMA) pavements. When the Superpave Performance Graded (PG) binder specification (AASHTO M 320) was introduced, it was expected that all asphalt binders with the same “Performance Grade” ...
  • Online Systems for Oversize and Overweight Freight Permitting and Motor Carrier Credentialing Transportation Research Synthesis
    Online Systems for Oversize and Overweight Freight Permitting and Motor Carrier Credentialing : Transportation Research Synthesis.
    CTC & Associates LLC
    2017-09-01 | PDF
    MnDOT uses two online systems implemented in the 1990s to issue and manage permits for oversize/overweight (OS/OW) freight and motor carrier credentials: - RouteBuilder, an OS/OW permitting system with a routing component. - Motor Carrier Information System (MCIS), which processes and tracks motor carrier credentials, operating authority and associ ...
  • KYTC sidewalk and curb ramp inventory for ADA compliance
    KYTC sidewalk and curb ramp inventory for ADA compliance.
    Souleyrette, Reginald R. ;
    Howell, Brian K.
    2017-09-01 | PDF
    The Americans with Disabilities Act of 1990 (ADA) requires that all public and private organizations providing services to the public ensure their facilities and infrastructure comply with regulations set forth therein. The ADA requires that a transition plan “identify physical obstacles in the public entity’s facilities that limit the accessibilit ...
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