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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 701 - 720 of 35448 results
  • Dowel Concrete Interface Performance Validation in Concrete Rehabilitations
    Dowel – Concrete Interface Performance Validation in Concrete Rehabilitations
    Izevbekhai, Bernard Igbafen ;
    Aydin, Ceren
    2024-09-01 | PDF
    The Minnesota Department of Transportation (MnDOT) investigated the use of dowels with various anchoring methods and their effects on pavement performance. In a previous study, the characteristics of various epoxy and grout anchorage systems at the interface between new construction and existing concrete were studied using cut-out slabs brought int ...
  • Utilizing a ParticlePacking Approach for an IllinoisSpecific Nonproprietary LowShrinkage UHPC
    Utilizing a Particle-Packing Approach for an Illinois-Specific, Nonproprietary, Low-Shrinkage UHPC
    Baten, Bayezid ;
    Gombeda, Matthew J
    2024-09-01 | PDF
    Ultra-high-performance concrete (UHPC) represents the next generation of concrete, with a strength 3-4 times greater than traditional concrete (100-120 MPa as opposed to 30-40 MPa). However, most of the commercial UHPC mixes are proprietary and expensive. In this project, we document the development of nonproprietary, cost-effective UHPC mixes prim ...
  • Speed Management and Emergency Response a Synthesis Study
    Speed Management and Emergency Response – a Synthesis Study
    Tainter, Francis ;
    Fitzpatrick, Cole
    2024-09-01 | PDF
    The impact of speed on roadways throughout the Commonwealth of Massachusetts continues to be a critical concern in the effort of achieving zero fatalities and reducing serious injuries. Speed management solutions are plentiful, and their impact is known; what is missing is the lack of use—municipal officials may be apprehensive in implementation. T ...
  • Verification of ODOT Rock Channel Design Procedures Fact Sheet
    Verification of ODOT Rock Channel Design Procedures [Fact Sheet]
    Che, Daniel ;
    Bricker, Jeremy
    2024-09-01 | PDF
    The Ohio Department of Transportation (ODOT) employs rock channel protection (RCP), also known as riprap, to manage energy dissipation and prevent scouring at culvert and storm drain outlets. The design for RCP at outlets follows guidelines outlined in Figure 1002-4 of ODOT's Location and Design Manual Volume 2, incorporating specifications from OD ...
  • Determining the Effectiveness of Commercial Vehicle Safety Alerts
    Determining the Effectiveness of Commercial Vehicle Safety Alerts
    Kidando, Emmanuel ;
    Kitali, Angela E
    2024-09-01 | PDF
    The Ohio Department of Transportation has partnered with Drivewyze to improve safety and mobility on Ohio’s highways, focusing on commercial vehicle safety alerts (CVSAs). Through this partnership, Drivewyze provides commercial motor vehicle (CMV) drivers with real-time alerts via in-cab electronic logging devices (ELDs). The alerts are intended to ...
  • Determining the Effectiveness of Commercial Vehicle Safety Alerts Fact Sheet
    Determining the Effectiveness of Commercial Vehicle Safety Alerts [Fact Sheet]
    Kidando, Emmanuel ;
    Kitali, Angela E
    2024-09-01 | PDF
    The Ohio Department of Transportation has partnered with Drivewyze to improve safety and mobility on Ohio’s highways, focusing on commercial vehicle safety alerts (CVSAs). Through this partnership, Drivewyze provides commercial motor vehicle (CMV) drivers with real-time alerts via in-cab electronic logging devices (ELDs). The alerts are intended to ...
  • Verification of ODOT Rock Channel Design Procedures Fact Sheets
    Verification of ODOT Rock Channel Design Procedures [Fact Sheets]
    Che, Daniel ;
    Bricker, Jeremy
    2024-09-01 | PDF
    The Ohio Department of Transportation (ODOT) employs rock channel protection (RCP), also known as riprap, to manage energy dissipation and prevent scouring at culvert and storm drain outlets. The design for RCP at outlets follows guidelines outlined in Figure 1002-4 of ODOT's Location and Design Manual Volume 2, incorporating specifications from OD ...
  • Spot Zone and Overcoat Painting of Steel Bridges
    Spot, Zone and Overcoat Painting of Steel Bridges
    Wells, Danny ;
    Palle, Sudir
    2024-09-01 | PDF
    Over the past 25–30 years, the Kentucky Transportation Cabinet (KYTC) has replaced lead-based coatings on many bridges, often with zinc-based systems. But many of these coating systems are now degrading and reaching the ends of their service lives. Historically, KYTC has relied entirely on remove-and-replace painting, however, given the programmati ...
  • Road Weather Management Using Connected Vehicle Technology
    Road Weather Management Using Connected Vehicle Technology
    Perry, Frank ;
    Toth, Chris
    2024-09-01 | PDF
    Road weather systems collect, analyze, and share weather information to help mitigate the disruptive impact of weather events on the nation’s surface transportation system. Much research and development has been undertaken to advance road weather management practice. Meanwhile, many state and local efforts have aimed to deploy connected vehicle (CV ...
  • Control Guidelines for Aggregate Drainage Layers and Evaluation of In Situ Permeability Testing Methods for Aggregates
    Control Guidelines for Aggregate Drainage Layers and Evaluation of In Situ Permeability Testing Methods for Aggregates
    Garzon-Sabogal, Luis ;
    Getchell, Amy
    2024-09-01 | PDF
    This project examined the use of the light weight deflectometer (LWD) and the air permeameter test (APT) for control of the state of compaction and hydraulic conductivity of aggregate drainage layers. The investigation included an extensive program of LWDs, APTs, and nuclear density tests on two testing strips constructed at an experimental site—on ...
  • Guidelines for Utilization of Field Sands in Superpave Mixtures of Texas Project Summary Report
    Guidelines for Utilization of Field Sands in Superpave Mixtures of Texas [Project Summary Report]
    Abdallah, Imad N. ;
    Nazarian, Soheil
    2024-08-31 | PDF
    The objectives of this project were to determine the upper limit of specific field sand in a mix given the amount of active clay present in it, define the process to determine the clay content, and measure how they affect the performance of the asphalt mixtures. To address these objectives, this study focused on developing and verifying the guideli ...
  • Develop and Validate Precast Column Solutions for Texas Bridges Summary Report
    Develop and Validate Precast Column Solutions for Texas Bridges [Summary Report]
    Adediwura, Jade ;
    Bayrak, Oguzhan
    2024-08-31 | PDF
    The Texas Department of Transportation (TxDOT) initiated Project 0-7089 to explore the potential of using precast bridge substructures, particularly focusing on precast column solutions for multi- column bents. The project aimed to address the challenges and benefits associated with precast columns, which are known to expedite construction processe ...
  • Improve Data Quality for Automated Pavement Distress Data Collection Project Summary Report
    Improve Data Quality for Automated Pavement Distress Data Collection [Project Summary Report]
    Wang, Feng ;
    Luo, Xiaohua
    2024-08-31 | PDF
    The study commenced with a comprehensive review of the existing literature combined with a questionnaire survey that focused on the evaluation of prevailing automated pavement condition data collection techniques. The primary objective was to identify potential strategies for enhancing data quality and operational efficiency, drawing insights from ...
  • Determine the Feasibility and Methodologies of Using Structural Data from the Traffic Speed Deflectometer in Network and ProjectLevel Treatment Decision Making Project Summary Report
    Determine the Feasibility and Methodologies of Using Structural Data from the Traffic Speed Deflectometer in Network- and Project-Level Treatment Decision Making [Project Summary Report]
    Scullion, Tom ;
    Dorsett, Garrett
    2024-08-31 | PDF
    The goals of this project were to analyze and validate TSD data for use at the project and network levels, and to provide recommendations on ways to incorporate TSD data into existing Texas Department of Transportation (TxDOT) pavement management systems. Researchers proposed procedures that use TSD structural data to enhance network- and project-l ...
  • 07139 Determination of Pavement Surface Type
    0-7139: Determination of Pavement Surface Type
    Prozzi, Jorge A. ;
    Sabillon, Christian
    2024-08-31 | PDF
    This study evaluated and developed machine learning models for pavement surface classification to enhance accuracy and reliability using advanced computational techniques. Initially, a detailed literature review on pavement texture and measurement methods provided a foundation for developing a prototype system. This system, integrating laser scanne ...
  • 07161 Develop Settlement Criteria and Design Approach for Embankments and Retaining Walls Built on Compressible Soils
    0-7161: Develop Settlement Criteria and Design Approach for Embankments and Retaining Walls Built on Compressible Soils
    Huang, Jie ;
    Bin-Shafique, Sazzad
    2024-08-31 | PDF
    The overarching objective of this project is to identify settlement criteria for embankments and retaining walls and develop a systematic soil improvement design tool to facilitate the method selection and construction time and cost estimation. There is a consensus that the post-construction settlement has profound impacts on the service conditions ...
  • PostNEVI Electric Vehicle Infrastructure Research Freight Fleet and MultiFamily Housing Project Summary Report
    Post-NEVI Electric Vehicle Infrastructure Research (Freight, Fleet, and Multi-Family Housing) [Project Summary Report]
    Kraus, Edgar ;
    Kuzio, Jacqueline
    2024-08-31 | PDF
    Researchers conducted three stakeholder workshops to assess stakeholder needs and concerns, opportunities for stakeholder coordination, and long-term EV infrastructure strategy considerations. Researchers also conducted interviews with peer states and metropolitan planning organizations. These efforts resulted in the development of a prototype EV c ...
  • Develop Laboratory Mix Design for Full Depth Reclamation FDR Projects Using Foamed Asphalt Binder and Emulsified Asphalt Project Summary Report
    Develop Laboratory Mix Design for Full Depth Reclamation (FDR) Projects Using Foamed Asphalt Binder and Emulsified Asphalt [Project Summary Report]
    Arambula-Mercado, Edith ;
    Sebesta, Stephen
    2024-08-31 | PDF
    The purpose of this research project, conducted by the Texas A&M Transportation Institute, was to update and refine the mix design procedures for FDR to improve consistency, reliability, and performance of rehabilitated pavements. The project aimed to address the gaps and variability in current practices by suggesting certain changes to the standar ...
  • Integrated SiteManager and Pavement Analyst Database on an Online Platform Project Summary Report
    Integrated SiteManager and Pavement Analyst Database on an Online Platform [Project Summary Report]
    Bhasin, Amit ;
    Rahman, Syeda
    2024-08-31 | PDF
    The research team extracted material and project related information from the SMGR and DCIS databases, and pavement surface conditions, distress measures, and locations of all contracted and in-house construction and maintenance projects identified for four-year planning cycles from the Pavement Analyst database. The research team queried, integrat ...
  • 0716801 Support XRF Determination of Tire Rubber Content in Asphalt Binders
    0-7168-01: Support XRF Determination of Tire Rubber Content in Asphalt Binders
    Bhasin, Amit ;
    Filonzi, Angelo
    2024-08-31 | PDF
    This project is a field support extension of Project 0-7168, 'Use of X-Ray Fluorescence (XRF) to Determine Tire Rubber Content in Asphalt Binders.' That project showed that XRF can determine tire rubber content accurately. This project was to provide field support to districts to conduct XRF for tire rubber content in the field and a project site, ...
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