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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 35811 results
  • Improving Cost Estimation and Budget Planning with New Michigan Highway Construction Cost Index
    Improving Cost Estimation and Budget Planning with New Michigan Highway Construction Cost Index
    Liu, Hexu ;
    Kwigizile, Valerian
    2024-12-31 | PDF
    Accurate cost estimation plays a pivotal role in effective budget planning for highway construction projects, ensuring that resources are allocated appropriately and projects are completed within financial constraints. Traditional cost estimation methods, commonly used by transportation agencies like the Michigan Department of Transportation (MDOT) ...
  • A Statewide Geographic Information System GIS as a Predictive Tool for Locating Deeply Buried Archeological Deposits in Nebraska Phase IIIThe Sandhills Region
    A Statewide Geographic Information System (GIS) as a Predictive Tool for Locating Deeply Buried Archeological Deposits in Nebraska: Phase III-The Sandhills Region
    Layzell, Anthony L ;
    Mandel, Rolfe D.
    2024-12-23 | PDF
    This project developed a GIS to assist with the identification of deeply buried cultural deposits in alluvial settings across the Sandhills region of Nebraska. Soil survey data, previous geoarchaeological investigations, landform position, and other information was used to rank the potential of any stream valley setting as low, low-moderate, modera ...
  • Design Guidelines and Mitigation Strategies for Reducing Sedimentation of MultiBarrel Culverts
    Design Guidelines and Mitigation Strategies for Reducing Sedimentation of Multi-Barrel Culverts
    Muste, Marian
    ORCID ICON IMG
    2024-12-17 | PDF
    The accumulation of sediments at culverts is a chronic operational issue, frequently occurring at multi-barrel culverts located in erosion-prone watersheds. Sediment deposits can develop rapidly, impairing the culvert’s capacity to convey design flows and potentially leading to damage to both transportation infrastructure (e.g., road and culvert ov ...
  • Flood Assessment System for TxDOT
    Flood Assessment System for TxDOT
    Maidment, David ;
    Passalacqua, Paola
    2024-12-13 | PDF
    The National Weather Service (NWS) operates a National Water Model that continually forecasts water flow throughout the stream network of the United States, including 190,000 miles of streams divided into 100,000 stream reaches in Texas. The NWS has also deployed real-time flood inundation mapping to about half of Texas, and it will complete covera ...
  • Analyze Business Models for Implementation and Operation of a Statewide GNSS RTN [supporting dataset]
    Al-Kaisy, Ahmed ;
    Raza, Sajid
    2024-12-10 | ZIP
    The Global Navigation Satellite System (GNSS), commonly known as the global positioning system, has become one of the fastest-growing emerging technologies delivering location services to various sectors. The applications of geospatial data span every sphere of modern-day science and industry where geographical positioning matters. The list include ...
    Dataset Supporting Files
  • Use of Dashboards for Winter Operations
    Use of Dashboards for Winter Operations
    Crow, Mallory ;
    Lee, Ming-Shiun
    2024-12-01 | PDF
    Public works agencies at state and municipal levels have invested a large amount of personnel and funding resources in dashboards to improve winter maintenance operations. The types and amounts of data gathered and performance measures used to track and monitor winter maintenance operations vary by agency. Due to these differences, there is a need ...
  • Salt Shed Design Template
    Salt Shed Design Template
    Nixon, Wilfrid A. ;
    Williams, Clay
    2024-12-01 | PDF
    This project was undertaken to develop tools and guidelines for designing efficient, sustainable, and environmentally compliant salt storage facilities for winter maintenance operations. The project addressed critical issues such as environmental impacts of chloride runoff, optimization of facility design and location, and the development of tools ...
  • Traffic Safety Facts 2022 A Compilation of Motor Vehicle Traffic Crash Data
    Traffic Safety Facts 2022: A Compilation of Motor Vehicle Traffic Crash Data
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-12-01 | National Transportation Statistics (NTS) | PDF
    Fact sheets available from NCSA are Alcohol-Impaired Driving, Bicyclists and Other Cyclists, Children, Large Trucks, Motorcycles, Occupant Protection in Passenger Vehicles, Older Population, Passenger Vehicles, Pedestrians, Race and Ethnicity, Rural/Urban Traffic Fatalities, School-Transportation-Related Traffic Crashes, Speeding, State Alcohol-Imp ...
  • Traffic Safety Facts Overview of the 2023 Crash Investigation Sampling System
    Traffic Safety Facts: Overview of the 2023 Crash Investigation Sampling System
    United States. Department of Transportation. National Highway Traffic Safety Administration
    2024-12-01 | National Transportation Statistics (NTS) | PDF
    Data from the 2023 Crash Investigation Sampling System (CISS) shows there were an estimated 2,555,023 police-reported motor vehicle traffic crashes nationwide where at least one passenger vehicle (i.e., passenger car, light truck, or van less than 10,000 lb) was towed from the crash scene, which resulted in an estimated 1,043,485 injured occupants ...
  • Traffic Safety Facts Early Estimate of Motor Vehicle Traffic Fatalities for the First 9 Months JanuarySeptember of 2024
    Traffic Safety Facts: Early Estimate of Motor Vehicle Traffic Fatalities for the First 9 Months (January–September) of 2024
    United States. Department of Transportation. National Highway Traffic Safety Administration
    2024-12-01 | National Transportation Statistics (NTS) | PDF
    A statistical projection of traffic fatalities for the first 9 months of 2024 shows an estimated 29,135 people died in motor vehicle traffic crashes, a decrease of about 4.4 percent compared to 30,490 fatalities projected for the first 9 months of 2023. he third quarter of 2024 represents the 10th consecutive quarterly decline in fatalities beginni ...
  • Performance Characterization of an UltraHigh Performance Concrete Deck Connection for Alabama Bridges
    Performance Characterization of an Ultra-High Performance Concrete Deck Connection for Alabama Bridges
    Aaleti, Sriram ;
    Kreger, Michael E.
    2024-12-01 | PDF
    Cast-in-place bridges using normal concrete have been commonly used in the state of Alabama for short-span bridges. Even though their performance is satisfactory after construction and opening to traffic, this construction method requires a significant amount of construction time and on-site labor compared to the use of precast systems. The Acceler ...
  • FourYear Trends of Personal Mobility Devices in Metropolitan Vancouver The Evolution of Mode Shares Speeds and Comfort in OffStreet Paths
    Four-Year Trends of Personal Mobility Devices in Metropolitan Vancouver: The Evolution of Mode Shares, Speeds, and Comfort in Off-Street Paths
    Bigazzi, Alexander York ;
    Hassanpour, Amir
    2024-12-01 | PDF
    Micromobility or personal mobility devices (PMD) such as bicycles, scooters, and skateboards, with or without electric-assist, are increasingly popular for urban travel, which poses challenges in the constrained spaces of cycling facilities and multi-use paths. Consequently, understanding the evolving usage of PMD and their impacts on other path us ...
  • Green Bike Lane Evaluation for Florida Pavements Summary
    Green Bike Lane Evaluation for Florida Pavements [Summary]
    Nyamuhokya, Tito
    2024-12-01 | PDF
    The objectives of this project were to identify the causes of the premature failure of Florida's green-colored pavement markings (GCPMs) and to produce guidelines and improved specifications for the future installation and testing of new GCPM materials. The researchers reviewed relevant literature, interviewed contractors and vendors, visited exist ...
  • Development of a 475mm Asphalt Mixture Design
    Development of a 4.75-mm Asphalt Mixture Design
    Salari, Saman ;
    Cooper III, Samuel B
    2024-12-01 | PDF
    The Louisiana Department of Transportation and Development (DOTD) and other agencies continually identify techniques to reduce roadway maintenance and construction costs. One common approach to this task is the introduction of asphalt mixtures with a smaller nominal maximum aggregate size (NMAS) for utilization in roadways. Excessive stockpiles of ...
  • North Dakota Grain and Oilseed Transportation Statistics 202324
    North Dakota Grain and Oilseed Transportation Statistics 2023–24
    Vachal, Kimberly ;
    Peterson, Del
    2024-12-01 | PDF
    This report represents a continuation of analysis concerned with the patterns and methods of distributing grains and oilseeds from North Dakota. This series began with the analysis of 1956-57 data and was published in Agricultural Economics Reports 15, 17, 44, 56, and 86 and Agricultural Experiment Station Bulletin 462. The compilation and analysis ...
  • Implementation of Inductive Loop Signature Technology for Vehicle Classification Counts
    Implementation of Inductive Loop Signature Technology for Vehicle Classification Counts
    Minge, Erik ;
    Parikh, Gordon
    2024-12-01 | PDF
    This study evaluates recent technology that uses inductive loop detectors, traditionally used for collecting traffic volume and speed data, to provide vehicle classification data by examining the high-resolution signature produced when a vehicle passes over the sensor. The project aims to verify the accuracy of the new classification system, collec ...
  • Annual North Dakota Elevator Marketing Report 20232024
    Annual North Dakota Elevator Marketing Report, 2023-2024
    Vachal, Kimberly ;
    Peterson, Del
    2024-12-01 | PDF
    The objective of this report is to provide a benchmark for elevator managers in assessing performance and supply a source for recognizing trends in the characteristics of North Dakota elevators. This report and the statistics mailed to individual elevators are presented as a source of information for elevator managers and those interested in the No ...
  • Pedestrian Safety and Accessibility Best Practices for Channelized RightTurn Lanes
    Pedestrian Safety and Accessibility Best Practices for Channelized Right-Turn Lanes
    Gates, Timothy J. ;
    Kay, Jonathan J.
    2024-12-01 | PDF
    This research sought to identify best practices for channelized right-turn lanes (CRT) that better accommodate the safety and accessibility needs of all road users. This was accomplished through a comprehensive literature review, a state-of-the-practice survey of state and local roadway agencies (nationwide and within Minnesota), a review of agency ...
  • AIEngine for Adaptive Sensor Fusion for Traffic Monitoring System
    AI-Engine for Adaptive Sensor Fusion for Traffic Monitoring System
    Dubey, Abhishek ;
    Work, Daniel B.
    2024-12-01 | PDF
    Effective traffic incident management is critical for road safety and operational efficiency. Yet, many transportation agencies rely on predominantly reactionary methods, where incidents are reported by human agents and managed through rule-based frameworks like traditional Traffic Incident Management (TIM) systems. These methods, however, are vuln ...
  • Utah Roadside Litter Solutions
    Utah Roadside Litter Solutions
    Chamberlin, Robert ;
    Thomas, Chris
    2024-12-01 | PDF
    Roadside litter is increasing in the state of Utah, especially along landfill haul routes frequented by Trash/Recycling Vehicles and Construction Debris Haulers. These "hotspot" areas pose health and safety concerns for the public and for water resources. Litter cleanup creates an added burden for limited state forces, and the cost is shouldered by ...
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