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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 1921 - 1940 of 35865 results
  • Turfgrass Seed Variety Evaluation Process
    Turfgrass Seed Variety Evaluation Process
    Watkins, Eric ;
    Yue, Chengyan
    2023-05-01 | PDF
    This project addresses two critical needs: to update existing Minnesota Department of Transportation (MnDOT) turfgrass recommendation lists and to develop a new process to keep lists continually updated in a fair manner with data-driven recommendations. The authors evaluated the current list of MnDOT-approved turfgrass varieties and found underperf ...
  • GISBased Geotechnical Database for Collaborative GIS
    GIS-Based Geotechnical Database for Collaborative GIS
    Raja, Rameez Ali ;
    Toshniwal, Vidushi
    2023-05-01 | PDF
    INDOT spends at least 8 million dollars annually on geotechnical site investigations, not including the amounts spent by contractors. The laborious and costly job of data collection in geotechnical practice requires the efficient storing and organizing of this valuable data to develop correlations and trends in spatially varying geotechnical data. ...
  • Mitigating Projects Missing Deadlines
    Mitigating Projects Missing Deadlines
    Bossert, Justin ;
    Kester, Chris
    2023-05-01 | PDF
    This project's purpose was to produce an educational guide for agencies on contract language and processes that, when used, will improve the likelihood of a contractor delivering a project on time. The guide is supported by the following: 1) Review of current industry standards and literature related to contract time determination, contract type, a ...
  • Tacit Knowledge Model to Support Knowledge Capture and Transfer in GDOT
    Tacit Knowledge Model to Support Knowledge Capture and Transfer in GDOT
    Guerra-Zubiaga, David
    2023-05-01 | PDF
    The research team has undertaken a comprehensive study of Tacit Knowledge Management (TKM) within the Georgia Department of Transportation (GDOT) and compared it to other state DOTs. Through document analysis, surveys, and a case study of the I-85 Highway Bridge Collapse, the team has developed a final draft of the GDOT Tacit Knowledge Model (TKM). ...
  • District Highway Maintenance Research OnCall Task 2 Evaluation of New Technologies for Tracking the Distribution of Deicing Materials
    District Highway Maintenance Research On-Call Task 2: Evaluation of New Technologies for Tracking the Distribution of Deicing Materials
    Lammers-Staats, Erin ;
    Raudenbush, Zane
    2023-05-01 | PDF
    This report summarizes the results of a research task that was conducted to analyze Ohio DOT’s use of liquid deicing materials and the tracking capabilities of its snowplows’ distribution systems. The objective of the task was to identify areas for improvement in terms of tracking the liquid application rates and provide ideas on how to evaluate ne ...
  • District Highway Maintenance Research OnCall Task 2 Evaluation of New Technologies for Tracking the Distribution of Deicing Materials Fact Sheet
    District Highway Maintenance Research On-Call Task 2: Evaluation of New Technologies for Tracking the Distribution of Deicing Materials [Fact Sheet]
    Lammers-Staats, Erin ;
    Raudenbush, Zane
    2023-05-01 | PDF
    This Research-On-Call task provides ODOT a framework with which to evaluate the available new technologies for tracking the distribution of deicing materials. To accomplish this, researchers analyzed the current state of the practice for ODOT storm management, surveyed other transportation agencies about their winter maintenance programs, identifie ...
  • Influence of Autonomous and Partially Autonomous Vehicles on Minnesota Roads
    Influence of Autonomous and Partially Autonomous Vehicles on Minnesota Roads
    Espindola, Andre ;
    Alexander, Lee
    2023-05-01 | PDF
    This project focuses on experimental tests of the performance characteristics of autonomous vehicles (AVs) on highways and local roads in Minnesota. The project provides detailed data characterizing AV performance, which in turn can be used to inform the transportation community on implications for infrastructure maintenance, winter road maintenanc ...
  • Automated Vehicle Recommendations for Texas A Study of Highway and Urban Operational Design Domains
    Automated Vehicle Recommendations for Texas: A Study of Highway and Urban Operational Design Domains
    Chin, Kristie ;
    Gold, Andrea
    2023-05-01 | PDF
    Automated vehicles (AVs) present significant potential; yet, their technological maturity and performance remain to be proven. With several deployments underway in the state, it is critical for the Texas Department of Transportation (TxDOT) to provide the public with assurances that the AVs are performing safely in their intended operational enviro ...
  • Impact of Curling and Warping on Concrete Pavement Phase II Technology Summary
    Impact of Curling and Warping on Concrete Pavement: Phase II [Technology Summary]
    Ceylan, Halil ;
    Kim, Sunghwan
    2023-05-01 | PDF
    Evaluating the effects of various environmental conditions and design parameters on curling and warping can help improve the performance of Iowa concrete pavements.
  • Evaluation of FDOT Corrosion and Control Programs
    Evaluation of FDOT Corrosion and Control Programs
    Fadden, Matthew ;
    Jones, Casey
    2023-05-01 | PDF
    Corrosion of Florida’s bridge infrastructure has shown to be costly for FDOT, both due to the number of bridges and harsh environmental conditions across the State. While the mechanisms that describe corrosion within reinforced concrete bridge elements are well understood, the ability to limit corrosion in practice has led to many methods that aim ...
  • Assessing Axial Capacities of Auger Cast Piles from Measuring While Drilling Summary
    Assessing Axial Capacities of Auger Cast Piles from Measuring While Drilling [Summary]
    Herrera, Rodrigo ;
    Rodgers, Michael
    2023-05-01 | PDF
    Developing a comprehensive subsurface profile can be difficult, especially in certain areas in Florida where sandy soils with varying amounts of fines, clay, muck/peat and vuggy limestone formations add to the uncertainty of the overall response that can be expected from drilled-in-place deep foundations. Measuring while drilling (MWD) was develope ...
  • Connected VehicleCentric Dashboards for TMC of the Future
    Connected Vehicle-Centric Dashboards for TMC of the Future
    Sakhare, Rahul Suryakant ;
    Desai, Jairaj
    2023-05-01 | PDF
    The adoption of dashboards and tools into Traffic Management Centers (TMC) has been growing with advancements in connected vehicle (CV) data. These tools are now being utilized—not only for analyzing work zones, severe crashes, winter operations, and traffic signals—but also to provide measures for characterizing overall system mobility, resiliency ...
  • Bicycles and Micromobility for Disaster Response and Recovery Manuscript
    Bicycles and Micromobility for Disaster Response and Recovery [Manuscript]
    Fitch-Polse, Dillon Taylor ;
    Chen, Chen
    2023-05-01 | PDF
    Bicycles and other forms of micromobility have been anecdotally used in past disasters to help save lives and improve community recovery. However, research and practice are scarce on this resilient transportation strategy, which limits its usefulness and possible benefits. To fill this gap, our paper investigates the potential role bicycles and mic ...
  • Applied Ergonomics
    Applied Ergonomics
    Guo, Xingzhou ;
    Chen, Yunfeng
    2023-05-01 | PDF
    Ergonomic injuries and solutions have been extensively studied in the construction industry; however, the prevalence of work-related injuries, risky activities, and effective solutions in the transportation industry are not understood. This study aims to explore the prevalence of work-related injuries, risky activities, and potentially ergonomic so ...
    Supporting Files
  • Outdoor Information Panels To Convey RealTime Travel Information for Ridership Recovery
    Outdoor Information Panels To Convey Real-Time Travel Information for Ridership Recovery
    Gao, Song ;
    Christofa, Eleni
    2023-05-01 | PDF
    The MBTA has launched an Outdoor Information Panel (OIP) program. This will update legacy outdoor advertising locations or add other strategic locations near major roadways through digitization, for which 25% of the playlists will have dedicated "set aside" time to deliver real-time travel information (RTTI). This project developed guidelines for d ...
  • DowntoEarth Winter Operations Sensing and Data Applications
    Down-to-Earth Winter Operations Sensing and Data Applications
    Bhat, Chandra ;
    Claudel, Christian
    2023-05-01 | PDF
    Weather-responsive management strategies (WRMS) are innovative approaches to utilizing data in making decisions for roadway operations and maintenance. Texas Department of Transportation (TxDOT) has been evaluating low-cost approaches for enhancing WRMS, with special emphasis on suburban and rural environments. The main focus of Project 0-7007 is t ...
    Supporting Files
  • Incorporation Resilience Considerations in Transportation Planning TSMO and Asset Management
    Incorporation Resilience Considerations in Transportation Planning, TSMO and Asset Management
    Amekudzi-Kennedy, Adjo ;
    Ashuri, Baabak
    2023-05-01 | PDF
    This project integrates risk-based asset management procedures from the FHWA, AASHTO and the TRB with decision making under deep uncertainty (DMDU) concepts to develop climate vulnerability assessment, and planning and project evaluation capabilities for resilience building in transportation. The research framework includes: (1) understanding the c ...
  • Implementation of Enhanced Probe Data CANBUS for Tactical Workzone and Winter Operations Management
    Implementation of Enhanced Probe Data (CANBUS) for Tactical Workzone and Winter Operations Management
    Desai, Jairaj ;
    Sakhare, Rahul Suryakant
    2023-05-01 | PDF
    For over a decade, segment-based probe data has been extensively used by transportation stakeholders for monitoring mobility on Indiana roadways. However, enhanced probe data from connected vehicles includes a richer dataset that can provide more detailed real-time and after-action reviews. This enhanced data includes detailed vehicle trajectories, ...
  • Performance of High EarlyStrength Materials Used in Concrete Bridge Repair
    Performance of High Early-Strength Materials Used in Concrete Bridge Repair
    Ebrahim, Zina ;
    Pozo-Lora, Fray F
    2023-05-01 | PDF
    High early-strength materials are widely used for rapid concrete patching projects to limit road closure time and traffic obstruction. This research investigated the field performance of multiple high early-strength materials used in maintenance projects across Nebraska. Data from high early-strength products included in the state’s approved produc ...
  • Impact of Curling and Warping on Concrete Pavement Phase II
    Impact of Curling and Warping on Concrete Pavement: Phase II
    Tian, Kexin ;
    King, Daniel
    2023-05-01 | PDF
    Curling and warping behavior due to temperature and moisture variation has been widely considered an influential factor affecting the smoothness of jointed plain concrete pavement (JPCP). In recent decades, while extensive efforts have been made to quantify the impact of curling and warping-related deflections on the smoothness of JPCP, a standardi ...
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