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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 4661 - 4680 of 36908 results
  • Development, Education, and Implementation of a Low-Cost Audio Sensor-based Autonomous Surveillance System for Smart and Connected Transportation Infrastructure Construction and Maintenance [supporting datasets]
    Lee, Yong-Cheol ;
    Choi, Jin-Woo
    2020-10-01 | PDF
    Each Department of Transportation (DOT) in the United States has to govern and oversee an enormous number of transportation construction and maintenance projects. However, since a transportation construction project entails several miles of a job site including numerous work tasks and equipment operations, it has been increasingly challenging for e ...
    Dataset Supporting Files
  • Freight Planning for the Dolton and Riverdale Gateway Grade Separation
    Freight Planning for the Dolton and Riverdale Gateway: Grade Separation
    Sriraj, P S ;
    Fazio, Joseph
    2020-10-01 | PDF
    This document looks at the potential for grade separation at the ten at-grade rail crossings in or near the villages of Dolton and Riverdale, Cook County, Illinois. Cook County is approximately 22 miles (35 km) south of downtown Chicago. Association of American Railroads (AAR) site descriptions are provided including traffic control devices used at ...
  • Holistic Network-level Assessment of Pavement Flood Damages [supporting datasets]
    Lee, Yong-Cheol ;
    Choi, Kunhee
    2020-10-01 | PDF
    After recent catastrophic flood disasters in Louisiana in 2016 and Texas in 2017, roadways in Region 6 areas suffer not only from the flood-inundation, but also from the long-term recovery processes that incur enormous maintenance costs. To assess the impacts of flooding disasters on roadways, various studies have investigated sampled roadway damag ...
    Dataset Supporting Files
  • Promoting Transit-Oriented Developments by Addressing Barriers Related to Land Use, Zoning, and Value Capture [supporting datasets]
    Mathur, Shishir ;
    Gatdula, Aaron
    2020-10-01 | PDF
    This study advances land use, transportation planning, and public finance research by identifying: a) the various land use, zoning, and value capture-related barriers to the construction of transit-oriented developments (TODs); and b) the major strategies that are commonly used or could be used to address these barriers. The value capture (VC) tool ...
    Dataset Supporting Files
  • Guidelines for ME Traffic Database the TDSS Use and Recommendations for Developing Interfacial Modules
    Guidelines for M-E Traffic Database (the T-DSS) Use and Recommendations for Developing Interfacial Modules
    Walubita, Lubinda F. ;
    Aldo, Aldo
    2020-10-01 | PDF
    These draft guidelines, documented herein, primarily address the following two objectives: (a) provide guidelines on how to access and use the data from the M-E traffic database (T-DSS) in the FPS and M-E software (i.e., the TxME); and (b) make recommendations for the future development of interfacial modules for automated and direct import of the ...
  • Screening of South Dakota Asphalt Mixes for Moisture Damage Using Conventional and Innovative Approaches
    Screening of South Dakota Asphalt Mixes for Moisture Damage Using Conventional and Innovative Approaches
    Ghabchi, Rouzbeh ;
    Acharya, Rajan
    2020-10-01 | PDF
    Moisture-induced damage (stripping) is a major distress in asphalt pavements. This study was undertaken to evaluate the effects of chemical Warm Mix Asphalt (WMA) additives, Reclaimed Asphalt Pavement (RAP), Anti-Stripping Agent (ASA), and hydrated lime on moisture-induced damage potential of asphalt mixes. For this purpose, plant-produced asphalt ...
  • Bicycle Facility Implementation Quick Reference Guide
    Bicycle Facility Implementation -Quick Reference Guide
    Kuehl, Renae ;
    McGarvey, Mike
    2020-10-01 | PDF
    In addition to people walking, people bicycling are our most vulnerable roadway users; they are most at risk of serious injury or death when they are involved in motor vehicle-related crashes. Local, county, regional and state transportation agencies play an important role in providing and maintaining safe and comfortable bicycle facilities. Planne ...
  • Establishment of Best Practices for Construction and Design of CementTreated Materials
    Establishment of Best Practices for Construction and Design of Cement-Treated Materials
    Ashtiani, Reza S. ;
    Rashidi, Mohammad
    2020-10-01 | PDF
    Cementitious stabilization of granular soils has been proven to be an economically viable option for sustainable construction and rehabilitation of pavement structures. The absence of a harmonized and rapid turnaround laboratory mixture design procedure, coupled with construction and inspection guidelines that need improvement have resulted in an o ...
  • Bridge Prioritization Tool for Truck Platoons
    Bridge Prioritization Tool for Truck Platoons
    Texas A&M Transportation Institute
    2020-10-01 | EXCEL
    This program prioritizes TxDOT's bridges for different truck platoon configurations. The user selects the platoon parameters and the TxDOT district. The program provides a summary plot with the number of structures in each prioritization category. In addition, information on each bridges is provided, which includes estimated load ratings. Detailed ...
  • Effect of Realtime Traffic Data on Truck Diversion Routing on I75
    Effect of Real-time Traffic Data on Truck Diversion Routing on I-75
    Oloufa, Amr A. ;
    Younes, Samar
    2020-10-01 | PDF
    Successful development of effective real-time traffic management and information systems requires high quality traffic data in real time. The challenge over the years has been the massive expenses in both time and cost related to the collection of such data. This is true for both passenger vehicle and freight traffic where origin-destination (O/D) ...
  • Operating Manual for Importing Texas Bridge Data into ShakeCast
    Operating Manual for Importing Texas Bridge Data into ShakeCast
    Khosravikia, Farid ;
    Li, Meibai
    2020-10-01 | PDF
    Increases in the rate of seismicity in Texas and in neighboring states since 2008 motivated recent Texas Department of Transportation (TxDOT) research (0-6916), which characterized seismic hazards and bridge fragility, or likelihood of damage based on ground shaking intensity, in Texas; these factors were combined to develop a post-earthquake inspe ...
  • Design and Performance of Unbonded Concrete Overlays on Concrete Pavement A Synthesis
    Design and Performance of Unbonded Concrete Overlays on Concrete Pavement – A Synthesis
    Korzilius, Joseph ;
    Neff, Spencer
    2020-10-01 | PDF
    Due to increased traffic congestion and reduced budgets, National Road Research Alliance (NRRA) states are seeking effective rehabilitation techniques for older concrete pavements. Unbonded concrete overlays have a successful history as a rehabilitation option, and there is interest by NRRA member states to assemble information on best practices fo ...
  • Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling Research Project Capsule 203GT
    Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling: Research Project Capsule [20-3GT]
    Abu-Farsakh, Murad Y. ;
    Rupnow, Tyson
    2020-10-01 | PDF
    There are five main objectives of this research project. The first is to develop finite element models to simulate the performance of geosynthetic reinforced pavements of different traffic sections, built over subgrade soils of different strength conditions, with acceptable accuracy. The second objective is to calibrate and validate the finite elem ...
  • MASH TL3 Evaluation of TxDOT ExtraLarge Mailboxes
    MASH TL-3 Evaluation of TxDOT Extra-Large Mailboxes
    Dobrovolny, Chiara Silvestri ;
    Bligh, Roger P.
    2020-10-01 | PDF
    The purpose of the testing reported herein was to assess the performance of Texas Department of Transportation's (TxDOT’s) extra-large mailboxes according to the safety-performance evaluation guidelines included in the American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware (MASH) for Test Le ...
  • Use of Geophysical Methods for Sinkhole Exploration
    Use of Geophysical Methods for Sinkhole Exploration
    Montgomery, Jack ;
    Jackson, Dan
    2020-10-01 | PDF
    Karst geology is characterized by the presence of sinkholes and voids, which may pose significant risk to existing infrastructure. Sinkhole formation is often observed near active quarries, where dewatering operations can alter regional groundwater flow patterns leading to subsidence and increased void formation. In these areas, identifying locatio ...
  • MASH TL3 Evaluation of Guardrail to Rigid Barrier Transition Attached to Bridge or Culvert Structure
    MASH TL-3 Evaluation of Guardrail to Rigid Barrier Transition Attached to Bridge or Culvert Structure
    Williams, William F. ;
    Abu-Odeh, Akram Y.
    2020-10-01 | PDF
    Texas Transportation Institute (TTI) researchers performed an extensive literature review of bridge railing transitions crash tested to Manual for Assessing Safety Hardware (MASH) TL-3, and incorporated the information obtained from this review into the design and details for the new transition testing developed for this project. TTI researchers de ...
  • Rubber Asphalt Study for Wisconsin
    Rubber Asphalt Study for Wisconsin
    Reichelt, Signe ;
    Kilger, Albert
    2020-10-01 | PDF
    This study investigated the usage of ground tire rubber (GTR) in Wisconsin asphalt pavements. A special provision (SPV) was drafted outlining mix design guidance when using terminal and dry process GTR. The SPV also included a performance testing regime including Hamburg Wheel Tracking, Disk-Shaped Compact Tension (DCT), and Illinois Flexibility In ...
  • Hydraulic Effects of Temporary Bridge Construction Activities
    Hydraulic Effects of Temporary Bridge Construction Activities
    Fitzpatrick, Devan ;
    Buggs, Tanner
    2020-10-01 | PDF
    Bridge construction often requires placement of temporary features such as rock jetties and cofferdams in stream and river channels during the construction process. Environmental permitting agencies seek documentation, and in some cases quantification, of the potential effects of these temporary features on instream velocities and channel bank and ...
  • University of Florida Testbed Initiative Transit Components Bus Bike Rack System BDV31977113
    University of Florida Testbed Initiative - Transit Components: Bus Bike Rack System (BDV31-977-113)
    Yoon, Yong-Kyu ;
    Schumann, Todd
    2020-10-01 | PDF
    The Alachua County, FL, has the second highest bicycle mode share in the state. Bicycle riding combined with bus riding, i.e., multimodal commuting, is very popular in the City of Gainesville (COG), FL, while quantified information of usage is very limited. Although some infrastructure could be upgraded, there is no scientific data and ground to ma ...
  • Bridge Load and Resistance Factor Rating LRFR Assessment Statewide
    Bridge Load and Resistance Factor Rating (LRFR) Assessment – Statewide
    Sivakumar, Bala ;
    Senturk, Ekin
    2020-10-01 | PDF
    This purpose of this project is to validate the draft New York State Department of Transportation Load and Resistance Factor Rating (LRFR) Engineering Instruction developed to provide guidance on application of the LRFR methodology as specified in the American Association of State Highway and Transportation Officials (AASHTO) Manual for Bridge Eval ...
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