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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 1101 - 1120 of 36841 results
  • 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 ...
  • eTicketing in Iowa Tech Transfer Summary
    e-Ticketing in Iowa [Tech Transfer Summary]
    Knapp, Keith K.
    2024-12-01 | PDF
    The implementation of e-ticketing in Iowa has the potential to improve jobsite safety, save time, improve project documentation, and standardize data collection.
  • 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 ...
  • Development and Demonstration of a Novel Red Light Running Warning System Using Connected v2i Technology
    Development and Demonstration of a Novel Red Light Running Warning System Using Connected v2i Technology
    Levin, Michael W. ;
    Sun, Zongxuan
    2024-12-01 | PDF
    Running red traffic signals is a major cause of traffic collisions and resulting injuries and fatalities. Despite extensive prior work on systems to reduce red light violations, they continue to be a major problem in practice, partly because existing systems suffer from the flaw of providing the same guidance to all drivers. As a result, some viola ...
  • 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 ...
  • Mitigation of End Zone Cracking in Prestressed Concrete Girders Brief
    Mitigation of End Zone Cracking in Prestressed Concrete Girders [Brief]
    Kim, Yail Jimmy
    2024-12-01 | PDF
    This report presents two major aspects related to the end-zone behavior of prestressed concrete bulb-tee girders: i) laboratory experiments and ii) full-scale finite element modeling. The first part of the report discusses the behavior of anchorage zones, also known as end zones, with discrete rebars and continuous meshes. To examine the implicatio ...
  • 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 ...
  • Understanding How Marginalized Genders Travel Using NJ TRANSIT Brief
    Understanding How Marginalized Genders Travel Using NJ TRANSIT [Brief]
    Carnegie, Jon A.
    2024-12-01 | PDF
    Through this research, NJ TRANSIT sought to understand how women and members of the lesbian, gay, bisexual, transgender, queer plus community, sometimes referred to as sexual and gender minorities (SGMs) travel on NJ TRANSIT so the agency can provide better accommodations for all customers, regardless of sexual orientation or gender identity. The o ...
  • Resources and Tools to Improve Pedestrian Safety
    Resources and Tools to Improve Pedestrian Safety
    Finley, Kari ;
    Otto, Jay
    2024-12-01 | PDF
    While pedestrian safety is found in many Strategic Highway Safety Plans across the country, there may be potentially competing values and beliefs that influence the deployment of effective pedestrian safety strategies. Understanding shared values and beliefs among transportation stakeholders about pedestrian safety is critical to growing a positive ...
    Supporting Files
  • Wisconsin NonDriver Transportation Behavior Study
    Wisconsin Non-Driver Transportation Behavior Study
    Qin, Xiao ;
    Schneider, Robert
    2024-12-01 | PDF
    This study explores the transportation challenges faced by non-drivers in Wisconsin, a population comprising aging adults, individuals with disabilities, low-income residents, and those without access to vehicles. Non-drivers account for approximately 31% of the state’s population, with rural areas experiencing the greatest mobility barriers due to ...
  • Transit Usage Impacts of NJ TransitOriented Developments TODS
    Transit Usage Impacts of NJ Transit-Oriented Developments (TODS)
    Smart, Michael J. ;
    DiPetrillo, Stephanie E.
    2024-12-01 | PDF
    This report examines the relationships between the characteristics of transit-oriented development (TOD) and (1) the use of transit and non-motorized modes (walking, cycling, scooting) and (2) local shopping behaviors and behavioral changes during and after the COVID-19 pandemic. The team gathered data from 341 respondents via an online survey and ...
  • Assessment of TravelTime Reliability and Operational Resilience of Metro Freeway Corridors
    Assessment of Travel-Time Reliability and Operational Resilience of Metro Freeway Corridors
    Kwon, Eil ;
    Kazi, Farhanuddin
    2024-12-01 | PDF
    This study estimated and analyzed the travel-time reliability (TTR) and traffic-flow measures of effectiveness (MOE) for 74 directional corridors in the metro freeway network in Twin Cities, Minnesota, from January 2018 to December 2023, for both morning and afternoon peak periods. The network-wide trends for both TTR and MOE indicate that the traf ...
  • A Collection of Timken Roller Freight Advertisements
    A Collection of Timken “Roller Freight” Advertisements
    Kraft, Edwin R.
    2024-12-01 | PDF
    This document presents a curated collection of vintage mid-20th-century advertisements from The Timken Company, a pioneering manufacturer of roller bearings for railroad applications. Compiled by Edwin R. Kraft in December 2024, the collection emphasizes Timken’s promotional campaign for “Roller Freight,” a term highlighting the adoption of roller ...
  • Guidance on Evaluating Quality and Determining Return on Investment for Internal and ThirdParty Data Research Project
    Guidance on Evaluating Quality and Determining Return on Investment for Internal and Third-Party Data Research Project
    Van Dyke, Rebecca ;
    Kahl, Donner
    2024-12-01 | PDF
    ITD recognizes the challenge of selecting the best approach to making decisions around which data products are worth investing in and which ones may appear promising on the surface, but actually add little value to the agency’s business processes. In light of these challenges, ITD launched a research project to explore methods for evaluating the re ...
  • 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 | 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 ...
  • 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 | 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 ...
  • 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 ...
  • 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 | 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 ...
  • Investigation of UAS Platform and Personnel Development and Preparation through Lab and Site Testing
    Investigation of UAS Platform and Personnel Development and Preparation through Lab and Site Testing
    Almasi, Pouya ;
    Zhang, Qianyun
    2024-12-01 | PDF
    We propose a pilot program to initialize the UAS-based bridge inspection program in component level to enhance the bridge inspection practice in New Mexico State. In the proposed program, UAS-based bridge inspection strategies, data interpretation frameworks, and implementation software for individual NBI classified bridge components will be develo ...
  • 07183 Develop Crash Modification Factors for Super 2 Highways Brief
    0-7183: Develop Crash Modification Factors for Super 2 Highways [Brief]
    Brewer, Marcus A. ;
    Geedipally, Srinivas R.
    2024-11-30 | PDF
    Super 2 highways have been used across Texas for over 20 years, providing operational and safety benefits to rural two-lane highways at a lower cost than widening such facilities to four lanes. More Super 2 highways are planned as the demand increases on the state highway system. Previous research has provided insights on Super 2 safety, but update ...
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