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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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0 of 1000
Showing 4221 - 4240 of 36011 results
  • Motor Vehicle Crashes Among the Older Population
    Motor Vehicle Crashes Among the Older Population
    Qi, Yan ;
    Sarker, Md Al Adib
    2020-10-01 | PDF
    Adults aged 65 or older form a vulnerable population that is susceptible to road traffic injuries. Motor vehicle crashes are among the leading causes of unintentional injury deaths for the older population. There has been an increasing trend in the percentage of fatalities involving older people among the total fatalities. As the older population c ...
  • Influence of Powder Activated Carbon PAC in Fly Ash on the Properties of Concrete
    Influence of Powder Activated Carbon (PAC) in Fly Ash on the Properties of Concrete
    Hossain, Zahid ;
    Roy, Sumon
    2020-10-01 | PDF
    Class C Fly Ash (CFA) is commonly used as supplementary cementitious material (SCM) in producing concrete by ready-mix concrete contractors in Arkansas. However, CFA can be used as a partial replacement of Ordinary Portland Cement (OPC) if it meets certain ASTM requirements. It is believed that the presence of powder activated carbon (PAC) in CFA i ...
  • Influence of Powder Activated Carbon (PAC) in Fly Ash on the Properties of Concrete [supporting datasets]
    Hossain, Zahid ;
    Roy, Sumon
    2020-10-01 | XLSX
    Class C Fly Ash (CFA) is commonly used as supplementary cementitious material (SCM) in producing concrete by ready-mix concrete contractors in Arkansas. However, CFA can be used as a partial replacement of Ordinary Portland Cement (OPC) if it meets certain ASTM requirements. It is believed that the presence of powder activated carbon (PAC) in CFA i ...
    Dataset Supporting Files
  • ABQ Streets Project: Creating Alternative Residential Street Designs [supporting datasets]
    Rowangould, Gregory ;
    Ferenchak, Nick
    2020-10-01 | XLSX
    This research evaluates opportunities for retrofitting residential streets with alternative designs with the overall goal of improving their function, reducing their negative impacts and reducing maintenance costs. This is accomplished through three main research tasks. First, the authors conduct a comprehensive review of the street design literatu ...
    Dataset Supporting Files
  • Evaluation of Air Quality Models With NearRoad Monitoring Data Technical Report
    Evaluation of Air Quality Models With Near-Road Monitoring Data: Technical Report
    Farzaneh, Reza ;
    Vallamsundar, Suriya
    2020-10-01 | PDF
    Air dispersion models (air quality models) are used in evaluation of transportation projects to ensure their compliance with federal regulations including the National Environmental Policy Act and transportation conformity quantitative hot-spot analysis requirements. The literature indicates a wide range of variabilities involved in the modeling pr ...
  • Investigating the Impacts of Truck Platooning on Transportation Infrastructure in the South-Central Region [supporting datasets]
    Hassan, Hany ;
    Dessouky, Samer
    2020-10-01 | ZIP
    Truck platooning is an essential application of connected and autonomous vehicles, where several trucks are connected to each other forming a platoon. It is envisioned that truck platooning can assist in minimizing transportation challenges related to freight movements in the US by improving traffic operation, safety and reducing fuel consumption a ...
    Dataset Supporting Files
  • Roads Prices and Shortages A Gasoline Parable
    Roads, Prices, and Shortages: A Gasoline Parable
    Manville, Michael
    ORCID ICON IMG
    2020-10-01 | PDF
    Can pricing roads really help reduce congestion? One way to answer this question is to ask if not pricing roads causes congestion. This essay makes that case and does so by demonstrating the general principle that when goods are underpriced, shortages result, and congestion is essentially a shortage of road space. People react and adjust in many wa ...
  • 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 | XLSX
    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 | XLSX
    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 | XLSX
    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 ...
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