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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 1001 - 1020 of 35448 results
  • Crashes Related to Type and Location of Driveway Access Summary
    Crashes Related to Type and Location of Driveway Access [Summary]
    Bonyani, Gina ;
    Williams, Kristine M.
    2024-04-01 | PDF
    The objectives of this research were to provide a comprehensive study to examine safety issues associated with commercial driveways and to develop guidance for transportation agencies responsible for access management.
  • Product Material Investigation and Evaluation of Jays Majic Mud for Use in KDOT Construction and Maintenance Applications
    Product Material Investigation and Evaluation of Jay’s Majic Mud for Use in KDOT Construction and Maintenance Applications
    McArtor, Erinn ;
    Broxterman, Brandon
    2024-04-01 | PDF
    Jay’s Majic Mud (JMM) was investigated for possible use as either a rapid-set patching material or as a potential new alternative, novel, thin-bonded overlay system. In its current pre-packaged form, JMM does not meet the requirements for rapid-set material use, nor does it meet the permeability requirements needed for use as a standalone (neat) mi ...
  • Product Material Investigation and Evaluation of Jays Majic Mud for Use in KDOT Construction and Maintenance Applications Technical Summary
    Product Material Investigation and Evaluation of Jay’s Majic Mud for Use in KDOT Construction and Maintenance Applications [Technical Summary]
    McArtor, Erinn ;
    Broxterman, Brandon
    2024-04-01 | PDF
    KDOT currently uses a variety of thin bonded overlay systems to prolong the life of bridge decks in Kansas. These vary in both thickness and material type from thin ¼ in. bonded polymer overlays to common 1.5 in. silica fume concrete overlays. Jay’s Majic Mud was submitted as a potential new material product that could serve as a cost-effective alt ...
  • CulvertStorm Drain Evaluation Technologies
    Culvert/Storm Drain Evaluation Technologies
    Wahlen, Randy ;
    Perrin, Joe
    2024-04-01 | PDF
    While LiDAR (light detection and ranging) is not a new technology to UDOT, mobile LiDAR has not been used to enhance culvert inspections. The study reviewed two types of mobile scanning technologies for testing culverts, Pocket LiDAR (iPhone 12 Pro based laser emitter that is used to improve accuracy of photogrammetry) and SLAM LiDAR (simultaneous ...
  • Prediction Model of VibrationInduced Settlement Due to Pile Driving Summary
    Prediction Model of Vibration-Induced Settlement Due to Pile Driving [Summary]
    Jones, Larry ;
    Hyun, Boo
    2024-04-01 | PDF
    This research project sought to better understand the mechanisms of pile driving-induced ground vibrations in loose to medium-loose soils. Additionally, the research team sought to develop a method for predicting ground deformations caused by impact pile driving, specifically for the characteristics of Central Florida soil conditions.
  • Domestic Airline Fares Consumer Report Fourth Quarter 2023 Passenger and Fare Information
    Domestic Airline Fares Consumer Report: Fourth Quarter 2023 Passenger and Fare Information
    United States. Department of Transportation
    2024-04-01 | Domestic Airline Fares Consumer Report | PDF
    Each month the Department of Transportation releases an Air Travel Consumer Report that includes information about various service quality elements, including flight delays, mishandled baggage, over sales, and a variety of other types of consumer complaints. In response to an increasing number of inquiries from consumers about domestic airline pric ...
  • Bismarck Mandan 2021 Travel Demand Model Update
    Bismarck Mandan 2021 Travel Demand Model Update
    Motuba, Diomo ;
    Rahman, Baishali
    2024-04-01 | PDF
    The Bismarck Mandan Metropolitan Planning Organization (B-M MPO) Travel Demand Model (TDM) undergoes a comprehensive update every five years to incorporate the latest ground truths/data and advancements in transportation modeling techniques. The latest update incorporates data from the base year 2021 and partially from 2022, necessitated by the uni ...
  • Product Information Catalog and Vehicle Listing vPIC Analytical Users Manual 2022
    Product Information Catalog and Vehicle Listing (vPIC) Analytical User's Manual, 2022
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    This document provides guidance to analytical users of Vehicle Identification Number (VIN) decoding information generated for the National Highway Traffic Safety Administration’s (NHTSA) crash studies using NHTSA’s Product Information Catalog and Vehicle Listing (vPIC). The vPIC VIN decoder is built based on the vehicle manufacturer submissions to ...
  • Distracted Driving in 2022 Traffic Safety Facts Research Note
    Distracted Driving in 2022 [Traffic Safety Facts - Research Note]
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    This Research Note summarizes distracted driving statistics for 2022. Driver distraction is a specific type of driver inattention that occurs when drivers divert attention from the driving task to focus on some other activity. Often discussions regarding distracted driving center around cellphone use and texting, but distracted driving also include ...
  • NonTraffic Surveillance Fatality and Injury Statistics in NonTraffic Crashes in 2021 Traffic Safety Facts Research Note
    Non-Traffic Surveillance: Fatality and Injury Statistics in Non-Traffic Crashes in 2021 [Traffic Safety Facts - Research Note]
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    Non-traffic motor vehicle crashes are a class of crashes that occur off the public trafficways. These are mostly single-vehicle crashes on private roads, two-vehicle crashes in parking facilities, or collisions with pedestrians in driveways. In addition, there are “non-traffic incidents” such as a vehicle falling on a person underneath the vehicle ...
  • Fatality Analysis Reporting System Analytical Users Manual 19752022
    Fatality Analysis Reporting System Analytical User’s Manual, 1975-2022
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    This is the updated and revised Fatality Analysis Reporting System (FARS) Analytical User’s Manual for the period 1975 to 2022. This manual presents the evolution of FARS coding from inception through present. It includes the data elements that are contained in FARS and other useful information that will enable the users to become familiar with the ...
  • Teens and Distracted Driving in 2022 Teen Distracted Driver Data
    Teens and Distracted Driving in 2022 [Teen Distracted Driver Data]
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    The National Highway Traffic Safety Administration works to reduce the occurrence of distracted driving and raise awareness of its dangers. This risky driving behavior poses a danger not only to vehicle occupants but pedestrians and pedalcyclists as well. Driver distraction is a specific type of driver inattention that occurs when drivers divert at ...
  • Quick Facts 2022
    Quick Facts 2022
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    Quick reference of 2022 traffic safety numbers and statistics.
  • Crash Report Sampling System Analytical Users Manual 20162022
    Crash Report Sampling System Analytical User’s Manual, 2016-2022
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    This is the updated and revised Crash Report Sampling System Analytical User’s Manual for the period 2016 to 2022. This multi-year analytical user’s manual provides documentation on the evolution of coding practices of CRSS from 2016 to 2022. The manual will continue to grow each year and present the historical coding of CRSS from inception through ...
  • Solutions To Mitigate DowelTieBar Propagated Cracking Phase 1
    Solutions To Mitigate Dowel/Tie-Bar Propagated Cracking – Phase 1
    Rao, Shreenath ;
    Abdualla, Hesham
    2024-04-01 | PDF
    This Phase 1 study was undertaken to evaluate cracking related to dowel bars and tie bars in concrete pavement. The results of the literature review and field studies suggest that under some conditions, restraint caused by dowel bars and tie bars in the concrete result in high early age stresses that contribute to cracking. Field evaluation of six ...
  • Guidebook for Project Management
    Guidebook for Project Management
    Asher, Jill ;
    Caudill, Keith
    2024-04-01 | PDF
    For the Kentucky Transportation Cabinet’s (KYTC) Department of Highways, project development encompasses all the work activities needed to move a transportation project from concept and project initiation to construction letting. Developing projects efficiently requires the adoption of sound project management practices. Although KYTC has a long tr ...
  • Advancing Urban Stream RestorationEnhancement Practices for Compensatory Mitigation Credits
    Advancing Urban Stream Restoration/Enhancement Practices for Compensatory Mitigation Credits
    Schwartz, John ;
    Brown, Jason
    2024-04-01 | PDF
    Tennessee Department of Transportation Research is required to provide compensatory mitigation credits per Section 404 of the Clean Water Act and Tennessee’s Aquatic Resource Alteration Permit program when aquatic resource losses occur from highway construction. The Tennessee Stream Quantification Tool (TN SQT V.1) was created in 2019 to generate d ...
  • Traffic Safety Evaluation of Pedestrians and Bicyclists at Rectangular Rapid Flashing Beacons and Pedestrian Hybrid Beacons in Minnesota
    Traffic Safety Evaluation of Pedestrians and Bicyclists at Rectangular Rapid Flashing Beacons and Pedestrian Hybrid Beacons in Minnesota
    Saari, Ian ;
    Wagner, Mark
    2024-04-01 | PDF
    To improve the visibility and safety of pedestrian and bicyclist crossings, traffic-safety professionals across Minnesota have installed the Rectangular Rapid Flashing Beacon (RRFB) and Pedestrian Hybrid Beacon (PHB) at numerous locations around the state. The purpose of this evaluation was to determine the safety benefits, if any, for pedestrians ...
  • 2021 NonTraffic Surveillance System Coding and Validation Manual
    2021 Non-Traffic Surveillance System Coding and Validation Manual
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    The Non-Traffic Surveillance (NTS) system is a virtual data collection system of which one part is designed to gather data on fatalities and injuries that occur in nontraffic crashes, which can occur on private roads, driveways, and parking lots. The NTS program accepted potential crashes only from FARS analysts and from sampled Crash Report Sampli ...
  • 2020 NonTraffic Surveillance System Coding and Validation Manual
    2020 Non-Traffic Surveillance System Coding and Validation Manual
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    The Non-Traffic Surveillance (NTS) system is a virtual data collection system of which one part is designed to gather data on fatalities and injuries that occur in nontraffic crashes, which can occur on private roads, driveways, and parking lots. The NTS program accepted potential crashes only from FARS analysts and from sampled Crash Report Sampli ...
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