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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 2061 - 2080 of 36114 results
  • Study of Impacts of Technology on the Future Workforce at the MDOT SHA Research Summary
    Study of Impacts of Technology on the Future Workforce at the MDOT SHA [Research Summary]
    Han, Chaodong
    ORCID ICON IMG
    2023-04-30 | PDF
    The scope of this study is to provide recommendations on how administrative assistants and business analyst jobs may be redesigned and aligned with technological changes and the job market dynamics and how employees, processes and technology may be managed to better meet MDOT SHA’s needs.
  • Impact of Permit Vehicles on Bridges and Pavements in Alabama
    Impact of Permit Vehicles on Bridges and Pavements in Alabama
    Chmielewski, Jacek ;
    Stawska, Sylwia
    2023-04-30 | PDF
    Permit regulations and heavy traffic monitoring procedures are developed to provide safety and protect the infrastructure from accelerated wear and tear. The number of issued permits is growing, but the impact of the overloaded vehicles has not been quantified. Alabama permit fee schedule has not been changed for decades; therefore, there is a need ...
  • Right of Way Mapping Conversion to GIS
    Right of Way Mapping Conversion to GIS
    Bunting, Erin L ;
    Goodwin, Robert F
    2023-04-28 | PDF
    The goals of this project were to research the best method of utilizing information to update ROW maps, determine the best method to create a ROW map product that could integrate future Real Estate functions, determine what ROW map product would be best for moving towards a GIS and create a simplified map search functionality. To accomplish the pro ...
  • Evaluation of MDOTs LongLife Pilot Projects
    Evaluation of MDOT’s Long-Life Pilot Projects
    Muslim, Hamad Bin ;
    Ghazavi, Mahdi
    2023-04-19 | PDF
    In Michigan, four pilot long-life pavement sections were constructed between 2017 and 2019; two rigid and two flexible pavements. Each pilot project included a long-life and an accompanying standard (control) section constructed on the same highway. Modifications to standard designs and materials were made to extend their service life. The scope of ...
  • Construction Wind Loading for Steel Girders Resiliency and Reliability
    Construction Wind Loading for Steel Girders – Resiliency and Reliability
    Eshra, Elsayed ;
    Warn, Gordon
    2023-04-11 | PDF
    The main objective of this study is to assess and evaluate PennDOT’s current specifications for wind loading on completely erected steel girders with diaphragms installed but prior to the placement of the deck. Current specifications are evaluated with respect to recent changes to AASHTO’s wind loading procedures for bridges under construction base ...
  • Improved Maintenance Methods for Bridge Drains and Expansion Joints
    Improved Maintenance Methods for Bridge Drains and Expansion Joints
    White, Wilderich A. ;
    Lasky, Ty A.
    2023-04-05 | PDF
    Many bridges have drainage systems and expansion joints that are not typically found on mainline roadways. Standard mechanical sweepers are well-suited for mainline roadways and standard drains; however, these machines tend to push incompressible debris into bridge drains, which can easily lead to blocking of the drains and to subsequent flooding. ...
  • Methods for Sealing Vertical Cracks on Concrete Structures
    Methods for Sealing Vertical Cracks on Concrete Structures
    Sufian, Abu Ahmed ;
    Lee, Hyung S
    2023-04-01 | PDF
    The Florida Department of Transportation (FDOT) has had inconsistent success in sealing vertical cracks in concrete structures. This necessitated the investigation of the performance of different sealant types and application methods to address the concern of proper crack sealing in concrete substructures that cannot be routinely investigated. For ...
  • Study of Impacts of Technology on the Future Workforce at the MDOT SHA
    Study of Impacts of Technology on the Future Workforce at the MDOT SHA
    Han, Chaodong ;
    Otto, James
    2023-04-01 | PDF
    Artificial intelligence, robotic process automation, natural language processing and virtual collaboration technologies are transforming the landscape of the office and administrative workforce by automating non-value added, repetitive tasks and processes, as well as supporting remote and flexible work. The scope of this study is to provide recomme ...
  • 2022 GDOT Employee Survey
    2022 GDOT Employee Survey
    DeMeester, Karen ;
    Simmons, Brian
    2023-04-01 | PDF
    The research team which included faculty from University of Georgia’s College of Engineering and Carl Vinson Institute of Government worked in collaboration with the Georgia Department of Transportation (GDOT) to conduct the 2022 GDOT employee survey. This research study aimed to increase the response rate and the usefulness of the feedback from th ...
  • Shear and Bearing Capacity of Corroded Steel Beam Bridges and the Effects on Load Rating
    Shear and Bearing Capacity of Corroded Steel Beam Bridges and the Effects on Load Rating
    Kanakamedala, Deven ;
    Seo, Jungil
    2023-04-01 | PDF
    Corrosion in the girders of steel girder bridges often occurs due to the deicing salts, water, and other debris that leak through the deck joints into the web and bottom flange at the girder ends. Corrosion causes loss of cross-sectional area leading to a reduction in section properties of the member, which eventually results in a reduction in stru ...
  • Implementation of Balanced Asphalt Mix Design of Asphalt Mixtures Prepared with Reclaimed Asphalt Pavements and Rejuvenators for Enhanced Performance
    Implementation of Balanced Asphalt Mix Design of Asphalt Mixtures Prepared with Reclaimed Asphalt Pavements and Rejuvenators for Enhanced Performance
    Kassem, Emad ;
    Hatailah, Hussain Al
    2023-04-01 | PDF
    The use of Reclaimed Asphalt Pavement (RAP) promotes and integrates sustainable solutions into civil engineering practices. Many transportation agencies limit the RAP content to a small percentage. Despite the environmental benefits and cost savings of incorporating RAP into asphalt mixtures, it may result in stiffer mixtures, especially at a highe ...
  • Noise Measurements of US41 Transverse Rumble Strips
    Noise Measurements of US-41 Transverse Rumble Strips
    El-Rayes, Khaled ;
    Ignacio, Ernest-John
    2023-04-01 | PDF
    This report focuses on collecting and analyzing external and internal noise levels generated by the modified transverse rumble strips on US-41 that were reconstructed in October 2022. The goal is to enable a comparison with noise levels generated by the previous rumble strips that were constructed in the same location in 2019. This work is organize ...
  • Drainage 101 County Roadways City Street and Drainageways Best Practices and Resource Guide
    Drainage 101 County Roadways, City Street and Drainageways: Best Practices and Resource Guide
    Arvidson, Tim
    2023-04-01 | PDF
    The time individual engineers, administrators and their staff invest in researching drainage law and defining the best approach to solving drainage issues can be considerable. This document provides quick access to information needed to solve those problems and discover legal solutions to recurring drainage issues and the time saved could be invest ...
  • Impaired Active Transportation Users
    Impaired Active Transportation Users
    Burbidge, Shaunna K. ;
    Singleton, Patrick A.
    2023-04-01 | PDF
    Researchers have determined that a significant number of pedestrian and bicycle crashes arise from intoxicated non-motorists (Hutchinson, Kloeden, and Lindsay, 2010). While driver and non-motorized fatalities have decreased significantly over several decades, the extent of alcohol involvement has declined significantly only among fatally injured dr ...
  • Grand Forks East Grand Forks 2021 Travel Demand Model Update Executive Summary
    Grand Forks East Grand Forks 2021 Travel Demand Model Update: Executive Summary
    Motuba, Diomo ;
    Habib, Muhammad Faisal
    2023-04-01 | PDF
    The Grand Forks East Grand Forks MPO's (The Forks MPO) Travel Demand Model (TDM) is updated every five years to reflect new ground truths/data and the advancements in the state-of-the-art in transportation modeling techniques and methods. The current update reflects the base year 2021 data. The model is a four-step TDM including trip generations, t ...
  • Peak Temperature Determination of Drilled Shafts Excluded From Mass Concrete Consideration in Current Specifications
    Peak Temperature Determination of Drilled Shafts Excluded From Mass Concrete Consideration in Current Specifications
    Mullins, Gray ;
    Lewis, Amanda
    2023-04-01 | PDF
    Drilled shafts are reinforced concrete deep foundation elements that typically range in diameter from 3 to 15 feet. Within the past 20 years, drilled shaft installation plans for FDOT projects have gone from requiring no mass concrete information (regardless of shaft diameter) to requiring steps to control temperature for shafts greater than 6 feet ...
  • The Role of Gender and Identity in Travel Behavior
    The Role of Gender and Identity in Travel Behavior
    Song, Ying
    2023-04-01 | PDF
    MnDOT’s Advancing Transportation Equity Initiative focuses on ensuring the transportation network, services and decision- making meet the needs of Minnesota’s underserved or underrepresented communities. Understanding the needs, challenges and overall experiences of these communities is crucial to advancing an equitable transportation system. Publi ...
  • Improving Driver Yielding to Pedestrians at Intersections Summary
    Improving Driver Yielding to Pedestrians at Intersections [Summary]
    Dallman, Amber ;
    Morris, Nichole
    2023-04-01 | PDF
    Pedestrian deaths are at a 30-year high nationally—a trend that is mirrored in Minnesota. Previous research in Saint Paul found that driver yielding significantly increased at unsignalized crosswalks following a multifaceted approach that included the installation of signage and other low-cost engineering solutions combined with enforcement through ...
  • American Micromobility Panel Part 1
    American Micromobility Panel: Part 1
    Fitch-Polse, Dillon Taylor ;
    Mohiuddin, Hossain
    2023-04-01 | PDF
    This report presents preliminary findings from the American Micromobility Panel, the largest study of shared micromobility services in the United States incorporating riders from multiple major operators. Micromobility services (bike-share and scooter-share) have recently emerged in many U.S. cities. Given that the substitution of bicycling, scooti ...
  • Effects of LED Lighting on Terrestrial Wildlife
    Effects of LED Lighting on Terrestrial Wildlife
    Longcore, Travis
    ORCID ICON IMG
    2023-04-01 | PDF
    Due to their increased efficiency and brightness, Light Emitting Diodes (LEDs) are now the first choice in outdoor lighting projects. Unlike High-Pressure Sodium lamps, which produce longer wavelengths and yellow-to-orange light, and Low-Pressure Sodium lamps, which produce near monochromatic yellow light, LEDs are usually full-spectrum white light ...
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