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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 1141 - 1160 of 36873 results
  • Investigating Prime Versus Curing Where When and Why Project Summary Report
    Investigating Prime Versus Curing: Where, When, and Why [Project Summary Report]
    Goehl, Darlene ;
    Bierman, Carl
    2024-11-30 | PDF
    The objective of this research project was to determine where, when, and why a prime or cure is needed for a pavement layer. Some materials can be used for multiple purposes, such as to prime, bond, or help cure; however, the rates and timing of use may change depending on why the material is being used. Guidance is needed to help designers, inspec ...
  • Project Summary Fiber Optic Feasibility and Partnership Study
    Project Summary: Fiber Optic Feasibility and Partnership Study
    Minnesota Department of Transportation  ...
    2024-11-21 | PDF
    The Fiber Optic Feasibility and Partnership Study aimed to develop a strategic plan for future fiber connectivity by utilizing public-private partnerships. The project involved the following tasks: • Reviewed state policy and legal barriers. • Assessed the state's current right-of-way assets. • Identified fiber and telecommunications gaps and needs ...
  • Project Summary Rochester Automated Shuttle Pilot Med City Mover
    Project Summary: Rochester Automated Shuttle Pilot: Med City Mover
    Minnesota Department of Transportation  ...
    2024-11-20 | PDF
    The Rochester Automated Shuttle Pilot was a research project that included the 12-month demonstration (August 2021 - August 2022) of two highly automated and electric vehicles to over 3,000 passengers along a fixed route downtown in the City of Rochester. The circular, fixed route connected the Mayo Clinic downtown campus with residential neighborh ...
  • Smart Snelling Summary
    Smart Snelling [Summary]
    Minnesota. Department of Transportation
    2024-11-20 | PDF
    The Smart Snelling project was comprised of two main components: testing a third-party application to provide users signal phasing and timing (SPaT) information and testing snowplow signal priority. Minnesota Department of Transportation (MnDOT) and Minnesota's Ramsey County installed connected vehicle technology equipment at 16 intersections owned ...
  • Project Summary MnDOT Autonomous Bus Pilot
    Project Summary: MnDOT Autonomous Bus Pilot
    Minnesota. Department of Transportation. Research Services & Library
    2024-11-20 | PDF
    The MnDOT Autonomous Bus Pilot project consisted of deploying a Level 4 shuttle provided by EasyMile on the MnROAD facility. The bus was used for several rounds of public demonstrations as well as testing at the MnROAD facility during winter conditions. The bus could hold up to 12 people and had a range of typical driving speeds from 2 to 11 miles ...
  • MnDOT Traffic Camera Maximizer Summary
    MnDOT Traffic Camera Maximizer [Summary]
    Minnesota. Department of Transportation
    2024-11-20 | PDF
    This project involved the implementation of a Traffic Camera Maximizer (TCM).The Traffic Camera Maximizer was proposed to broaden the reach of the following MnDOT assets to improve situational awareness of driving conditions across the state.
  • Project Summary Connected Vehicle Traveler Alert System
    Project Summary: Connected Vehicle Traveler Alert System
    Minnesota. Department of Transportation  ...
    2024-11-20 | PDF
    The Connected Vehicle Traveler Alert System project was implemented to increase traveler awareness and subsequently increase safety of the traveling public by notifying them of upcoming maintenance vehicles or snowplows that may not have been in the line of sight. This was tested by sending maintenance vehicle location data gathered by an automatic ...
  • Project Summary Automated Waze Imports
    Project Summary: Automated Waze Imports
    Minnesota Department of Transportation  ...
    2024-11-20 | PDF
    Waze offered a traffic data feed to government transportation agencies, which included alerts (citizen alerts of traffic delays, construction, accidents, etc.) and jams (slowdown information created algorithmically by the Waze platform). The Automated Waze Imports task consisted of several components: • Customized and deployed a Waze alerts importe ...
  • Project Summary Dynamic Flashing Yellow Arrow Phase Mode Selection
    Project Summary: Dynamic Flashing Yellow Arrow Phase Mode Selection
    SRF Consulting Group
    2024-11-20 | PDF
    This project focused on utilizing high-resolution signal data, crash data, and volume data to analyze safety impacts associated with the three left turn phasing modes that flashing yellow arrows could operate in and determine when the various modes should operate. The three modes were as follows: Protected only; Protected-permissive; Permissive onl ...
  • Project Summary Centralized SPaT and MAP Data Sharing
    Project Summary: Centralized SPaT and MAP Data Sharing
    Minnesota. Department of Transportation. Research Services & Library
    2024-11-20 | PDF
    The project assessed MnDOT's ability to share signal phasing and timing (SPaT) data and intersection geometry (MAP) data to travelers and third-party systems via a centralized process.
  • Project Summary Work Zone Data Exchange WZDx CARS eXchange
    Project Summary: Work Zone Data Exchange (WZDx): CARS eXchange
    Minnesota. Department of Transportation  ...
    2024-11-19 | PDF
    The Condition Acquisition and Reporting System (CARS) eXchange project was put in place to support the Federal Highway Administration’s (FHWA) goal of increasing safety for the traveling public by sharing real-time work-zone information between the public and private sectors, under an FHWA grant. The project objective was to advance Minnesota Depar ...
  • Project Summary Passive Pedestrian Detection Analysis
    Project Summary: Passive Pedestrian Detection Analysis
    SRF Consulting Group
    2024-11-14 | PDF
    The Passive Pedestrian Detection Analysis project reviewed a variety of commercially available passive detection systems. After vendor selection, the project went through ground-truth testing, pushbutton compliance testing, and vendor result summarization. The objective of the project was to test and verify the accuracy of the selected passive dete ...
  • Advancing the Use of DWTR in Stormwater Treatment Features to Enhance Phosphorus Removal for Transportation Projects
    Advancing the Use of DWTR in Stormwater Treatment Features to Enhance Phosphorus Removal for Transportation Projects
    Roy, Eric ;
    Hurley, Stephanie
    2024-11-12 | PDF
    Stormwater runoff from urban areas threatens water quality and ecosystems around the world. For freshwater ecosystems, phosphorus (P) is often a primary concern, as excess P loading can cause eutrophication, symptoms of which include harmful algal blooms and oxygen depletion. Dissolved P forms are taken up by primary producers and are therefore a p ...
  • Evaluating the Correlation between Slip Resistance and Skid Resistance of Pavement Markings at Crosswalks
    Evaluating the Correlation between Slip Resistance and Skid Resistance of Pavement Markings at Crosswalks
    Goulias, Dimitrios ;
    Aljarrah, Osama
    2024-11-08 | PDF
    Pavement markings are crucial for ensuring the safe and efficient movement of vehicles, cyclists and pedestrians at crosswalks. They provide essential guidance in lane navigation, road sharing, and safety compliance. With growing emphasis on safety in urban areas, crosswalk markings are becoming more prevalent. The primary objectives of this projec ...
  • Quantification of the Effectiveness and External Noise of Rumble Strip Designs
    Quantification of the Effectiveness and External Noise of Rumble Strip Designs
    El-Rayes, Khaled ;
    Ignacio, Ernest-John
    2024-11-01 | PDF
    Rumble strips are roadway safety countermeasures that alert inattentive drivers by generating in-vehicle noise to minimize roadway departure crashes and prompt speed reduction for vehicles approaching stop-controlled intersections. Despite these safety benefits, they often generate external noise and complaints from nearby residents. This report pr ...
  • Improved Light Weight Deflectometer Test LWD and Analysis Summary
    Improved Light Weight Deflectometer Test (LWD) and Analysis [Summary]
    Shin, Boonam ;
    Tiwari, Nitin
    2024-11-01 | PDF
    This study focused on improving light weight deflectometer (LWD) testing protocols and understanding material and equipment variability. The Indiana Department of Transportation (INDOT) adopted the LWD test for its efficiency and effectiveness in measuring soil stiffness, a crucial parameter for pavement structural layers. However, challenges remai ...
  • Improving the LongTerm Condition of Pavements in Massachusetts and Determining Return on Investment Implementing the AASHTO
    Improving the Long-Term Condition of Pavements in Massachusetts and Determining Return on Investment: Implementing the AASHTO
    Von Quintus, Harold L. ;
    Sufian, Abu A
    2024-11-01 | PDF
    The Massachusetts Department of Transportation (MassDOT) has sponsored multiple projects to implement the Mechanistic-Empirical Pavement Design Guide (MEPDG). Due to the complexity of this research, a four-phase approach spanning several years was proposed. This report focuses on Phase 3. In Phase 3, MassDOT concentrated on using the Long-Term Pave ...
  • The Effects of Truck Platooning on the Kansas Workforce
    The Effects of Truck Platooning on the Kansas Workforce
    Kondyli, Alexandra ;
    Mahajan, Kirti
    2024-11-01 | PDF
    The objective of this project was to evaluate the expected impacts of truck automation and platooning on the Kansas workforce and formulate strategies to mitigate potential negative effects. The study was comprised of two phases: (1) a systematic literature review and (2) the compilation of insights from industry, workforce, and policymakers to cre ...
  • The Effects of Truck Platooning on the Kansas Workforce Summary
    The Effects of Truck Platooning on the Kansas Workforce [Summary]
    Kondyli, Alexandra ;
    Mahajan, Kirti
    2024-11-01 | PDF
    The concept of automated freight transit began with platooning, which refers to one leading truck with a driver that controls two or three driverless, wirelessly connected trucks that follow at closely spaced gaps. Modern technology often displaces current jobs and required skills over time, but the potential for the high displacement of profession ...
  • Safer by Design Pavement Friction
    Safer by Design: Pavement Friction
    Goehl, Darlene C ;
    Nyamuhokya, Tito
    2024-11-01 | PDF
    Minimizing pavement impact on wet weather crashes is essential to the Wet Surface Crash Reduction Program (WSCRP). Currently, the Texas Department of Transportation has two methods to evaluate pavement friction: the Safer by Design (SBD) method and the pavement surface aggregate classification selection, Form 2088. The research team developed a fra ...
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