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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 601 - 620 of 35440 results
  • Develop Guidelines for Integration of UAS LiDAR and Photogrammetry to Enhance Land Surveying Capabilities Project Summary Report
    Develop Guidelines for Integration of UAS LiDAR and Photogrammetry to Enhance Land Surveying Capabilities [Project Summary Report]
    Starek, Michael J. ;
    Berryhill, Jacob
    2024-10-30 | PDF
    The researchers completed twelve UAS data collection field tests, ten at TxDOT district project sites and two at development test sites, using SfM and LiDAR. Two grades of LiDAR scanners were evaluated based on their ranging capabilities and quality of their position and orientation systems. Data collections were conducted across all four seasons i ...
  • City of Hamilton State Street Traffic Calming Project July 19October 15 2024
    City of Hamilton State Street Traffic Calming Project: July 19–October 15, 2024
    Madsen, Matthew ;
    Gleason, Rebecca
    2024-10-30 | PDF
    The Western Transportation Institute (WTI) has been coordinating with Bike Walk Montana and the Montana Department of Commerce’s Main Street Program to help small towns with pop-up projects aimed at slowing traffic to create safer streets. The Department of Commerce suggested opportunities for pop-up traffic calming in Hamilton, Montana, where City ...
  • West Yellowstone Highway 20 Traffic Calming Project July 23rd October 15th 2024
    West Yellowstone Highway 20 Traffic Calming Project: July 23rd – October 15th, 2024
    Gleason, Rebecca ;
    Madsen, Matthew
    2024-10-25 | PDF
    The West Yellowstone Business Improvement Advisory Board (BIAB) reached out to the Western Transportation Institute (WTI) in fall 2023 to request help slowing traffic through W. Yellowstone, Montana, to create safer streets, especially for pedestrians. In October 2023, WTI met with Montana Department of Transportation (MDT) staff to discuss the pos ...
  • Informed Safety Mobility and Driver Comfort Enhancement Practices for Work Zones Learnings from HighFidelity Data
    Informed Safety, Mobility, and Driver Comfort Enhancement Practices for Work Zones: Learnings from High-Fidelity Data
    Mishra, Sabyasachee ;
    Golias, Mihalis M.
    2024-10-15 | PDF
    This study leverages high-fidelity observational data to analyze driver behavior and vehicle dynamics within work zones (WZs) on Tennessee’s interstate highways, aiming to evaluate critical aspects of safety, mobility, and driver comfort. Data were collected over several months from GPS, IMU sensors, and video recordings on commercial vehicles trav ...
  • Synthesis of Seal Coat Research in Minnesota
    Synthesis of Seal Coat Research in Minnesota
    Minnesota. Department of Transportation. Local Road Research Board
    2024-10-01 | PDF
    While seal coating has been widely used as a cost-effective strategy in asphalt pavement preservation by the Minnesota Department of Transportation (MnDOT) and local agencies to extend the life of pavements, some cities and counties in Minnesota have reported their concerns about the premature stripping of street pavements that have been seal coate ...
  • Toward Implementation of MaxPressure Control on Minnesota Roads Phase 2
    Toward Implementation of Max-Pressure Control on Minnesota Roads: Phase 2
    Stern, Raphael ;
    Levin, Michael W.
    2024-10-01 | PDF
    Max-pressure (MP) traffic signal control is a new and innovative control algorithm that uses upstream and downstream vehicle counts to determine signal timing that maximizes throughput. While this method has been extensively tested in simulation, it has not yet been tested on actual traffic signals in the US. To close this gap, this report presents ...
  • AntiGraffiti Protection Systems
    Anti-Graffiti Protection Systems
    Khodair, Yasser ;
    Ahmed, Muddassir M
    2024-10-01 | PDF
    Anti-graffiti coatings provide a shielding layer that facilitates the removal of graffiti by providing a water-and oil-resistant surface that precludes the penetration of paint through the substrate. The main objective of this research is to provide the Illinois Department of Transportation (IDOT) with recommendations on the re-evaluation of the ex ...
  • Developing Implementation Strategies for Risk Based Inspection RBI
    Developing Implementation Strategies for Risk Based Inspection (RBI)
    Washer, Glenn A ;
    Brown, Henry
    2024-10-01 | PDF
    This project's goal was to improve asset management through Risk-Based Inspection (RBI) practices. The research was intended to amplify the results of prior research that produced the Proposed Guidelines for Reliability-Based Inspection Practices. Under the new provisions of the National Bridge Inspection Standards (NBIS), bridge owners that implem ...
    Supporting Files
  • Development of a Smart Phone App to Warn the Driver of Unintentional Lane Departure Using GPS Technology
    Development of a Smart Phone App to Warn the Driver of Unintentional Lane Departure Using GPS Technology
    Tasnim, N Z ;
    Hayee, M. Imran
    2024-10-01 | PDF
    Unintentional lane departure is a significant safety risk. Currently, available commercial lane departure warning systems use vision-based or GPS technology with lane-level resolution. These techniques have their own performance limitations in poor weather conditions. We have previously developed a lane departure detection (LDD) algorithm using sta ...
  • Roadway Crossings for Sensitive Amphibians and Reptiles Phase II
    Roadway Crossings for Sensitive Amphibians and Reptiles: Phase II
    Brehme, Cheryl ;
    Ewing, Brittany
    2024-10-01 | PDF
    Many migratory amphibians make annual population-level migrations among breeding wetlands and over-wintering and/or summer foraging upland terrestrial habitats. To reduce the negative impacts from road mortality on these vulnerable populations, it has been standard practice to build safe crossings in the form of small passages connected by barrier ...
  • OSTR Research Roundup October 2024
    OST-R Research Roundup: October 2024
    United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
    2024-10-01 | OST-R Research Roundup | PDF
    News from across OST-R and its research community.
  • Monitoring and Assessment of Landslides Along Alabama Highways
    Monitoring and Assessment of Landslides Along Alabama Highways
    Rahimikhameneh, Leila ;
    Montgomery, Jack
    2024-10-01 | PDF
    Rainfall-induced landslides are a common occurrence along Alabama highways leading to significant damage to infrastructure and disruption to traffic. There are no current approaches in use to predict when these slides are likely to occur, which limits the ability of ALDOT personnel to respond or intervene. This study developed a monitoring and asse ...
  • Development of a Resilience Index for the Florida Surface Transportation System Summary
    Development of a Resilience Index for the Florida Surface Transportation System [Summary]
    Carver, Jennifer Z ;
    Choi, Juyeonge
    2024-10-01 | PDF
    This research proposed a composite index framework using technical, socioeconomic, and environmental aspects to measure and monitor the robustness and rapidity of various aspects of a regional transportation infrastructure’s resilience to wind and water-related hazards.
  • New Smartphone App Uses GPS Technology to Warn Drivers of Lane Departures Research Summary
    New Smartphone App Uses GPS Technology to Warn Drivers of Lane Departures [Research Summary]
    Lund, Victor ;
    Hayee, M. Imran
    2024-10-01 | PDF
    Unintentional lane departure is a significant safety risk. Currently, available commercial lane departure warning systems use vision- based or GPS technology with lane-level resolution. These techniques have their own performance limitations in poor weather conditions. The authors have previously developed a lane departure detection (LDD) algorithm ...
  • Infrastructure Needs North Dakotas County Township and Tribal Roads and Bridges 20242043
    Infrastructure Needs: North Dakota’s County, Township and Tribal Roads and Bridges: 2024-2043
    Dybing, Alan ;
    Wentz, Bradley
    2024-10-01 | PDF
    This report is the response to the North Dakota Legislature's request for a study of the transportation infrastructure needs of all counties, townships and tribes in the state. In 2019, the North Dakota Legislature advanced HB 1066 which had a provision for funding distributions to non-oil producing counties based on the most recent version of this ...
  • Development of Test Procedures to Evaluate Moisture Susceptibility of Asphalt Mixtures Used in the State of Kansas Phase I Surface Free Energy of Binders
    Development of Test Procedures to Evaluate Moisture Susceptibility of Asphalt Mixtures Used in the State of Kansas, Phase I: Surface Free Energy of Binders
    Verma, Payal ;
    Darabi, Masoud K
    2024-10-01 | PDF
    The surface free energy of asphalt binders and aggregates is a critical material property related to the moisture sensitivity of asphalt mixtures. Surface free energies of these materials can be used to quantitatively determine the interfacial adhesive bond strength between two materials and the tendency of water to displace this bond based on fund ...
  • Development of Test Procedures to Evaluate Moisture Susceptibility of Asphalt Mixtures Used in the State of Kansas Phase I Surface Free Energy of Binders Technical Summary
    Development of Test Procedures to Evaluate Moisture Susceptibility of Asphalt Mixtures Used in the State of Kansas, Phase I: Surface Free Energy of Binders [Technical Summary]
    Verma, Payal ;
    Darabi, Masoud K
    2024-10-01 | PDF
    The surface free energy of an asphalt binder and aggregate is essential for determining the moisture susceptibility of asphalt mixtures. This project proposed an efficient method to routinely measure the surface energies of asphalt binders and aggregates to help design asphalt mixtures that are increasingly resistant to moisture damage. Surface ene ...
  • ReUse Of Minnesota Waste Material In Sustainably Design Soils Research Summary
    Re-Use Of Minnesota Waste Material In Sustainably Design Soils [Research Summary]
    Stenlund, Dwayne ;
    Saftner, David
    2024-10-01 | PDF
    Minerals, forestry, agriculture, and industrial activities in Minnesota generate substantial by-products and waste. Strategies to reuse or recycle these can reduce landfill waste, enhance public health, conserve resources, and cut costs and emissions. Building on the frameworks by Johnson et al. (2017), Saftner et al. (2019), and Saftner et al. (20 ...
  • Safety Impacts of Fluorescent YellowGreen Signs on Pedestrians Research Summary
    Safety Impacts of Fluorescent Yellow-Green Signs on Pedestrians [Research Summary]
    Brown, Henry
    2024-10-01 | PDF
    The objective of this research study is to synthesize existing research and review the state of the practice regarding the use of FYG for pedestrian and bicyclist signs. The research methodology includes a literature review, survey of departments of transportation (DOTs) and metropolitan planning organizations (MPOs) and follow up interviews with a ...
  • Measuring Fare Payment Compliance on MBTA Buses
    Measuring Fare Payment Compliance on MBTA Buses
    Gonzales, Eric J. ;
    Gao, Song
    2024-10-01 | PDF
    This study presents a method to estimate fare payment compliance within the Massachusetts Bay Transportation Authority bus system using only automatically collected data from the Automated Fare Collection and Automated Passenger Counting systems. Data from over 787,000 passenger boardings were used to identify patterns of fare system on-interaction ...
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