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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 1841 - 1860 of 36114 results
  • Strengthening Communities with Innovative Right of Way Projects Technical Summary
    Strengthening Communities with Innovative Right of Way Projects [Technical Summary]
    Austin, Lisa ;
    Douma, Frank
    2023-08-01 | PDF
    When many urban highway projects were built several decades ago, thriving communities were physically divided and negatively impacted. As social awareness and urban design have evolved, some areas have developed strategies for repairing and revitalizing these communities by redesigning right of way (ROW) areas along highway corridors.
  • Evaluation of FDOT Corrosion Prevention and Control Programs Summary
    Evaluation of FDOT Corrosion Prevention and Control Programs [Summary]
    Duncan, Matthew ;
    Fadden, Matthew
    2023-08-01 | PDF
    This research reviewed commonly used materials and systems to evaluate and compare multiple practices and systems used across the State in terms of durability, cost, and long-term performance. Additionally, this project summarized current FDOT design requirements and specifications regarding corrosion control for reinforced concrete bridge structur ...
  • District Highway Maintenance Research OnCall ROC Task3 ODOT Maintenance Workflow
    District Highway Maintenance Research On-Call (ROC) –Task#3 ODOT Maintenance Workflow
    Schroeder, Bastian ;
    Rowe, Glenn
    2023-08-01 | PDF
    ODOT funded this study to investigate maintenance scheduling practices in the US and search for potential software systems that are capable of alleviating the challenges of maintenance scheduling. The project conducted a national scan and extensive agency outreach to evaluate existing approaches. It further completed interviews with ODOT staff and ...
  • Correlation of Rut Depths Measured by the Profilers of LTRC and DOTD PMS Tech Summary
    Correlation of Rut Depths Measured by the Profilers of LTRC and DOTD PMS [Tech Summary]
    Chen, Qiming
    2023-08-01 | PDF
    The objective of this research was to develop a correlation of rut depths measured with LTRC’s profiler with a 5-point laser system and DOTD PMS’s profiler with a scanning laser system. A standard operating procedure (SOP) of pavement rutting data collection, compilation, and delivery by LTRC was developed so that DOTD pavement engineers can use LT ...
  • Deep Learning Software for Traffic State Prediction
    Deep Learning Software for Traffic State Prediction
    Bhattacharya, Sambit ;
    Park, Hyoshin
    2023-08-01 | PDF
    As urban populations continue to grow, traffic congestion has become an increasingly pressing issue for drivers, leading to a greater demand for advanced navigation aids and traffic management solutions. Real-time traffic information, advanced traffic signal control strategies, and the integration of various data sources can play a crucial role in ...
  • Evaluating Pavements Designed for Longer Life Brief
    Evaluating Pavements Designed for Longer Life [Brief]
    Kutay, M. Emin
    2023-08-01 | PDF
    A 2015 state law directed the Michigan Department of Transportation (MDOT) to explore innovations that can help pavements last longer and require less maintenance. To accomplish the task, the agency designed and constructed four projects using top-of-the-line materials and building methods. The completed roads are predicted to have service lives th ...
  • Correlation of Rut Depths Measured by the Profilers of LTRC and DOTD PMS
    Correlation of Rut Depths Measured by the Profilers of LTRC and DOTD PMS
    Chen, Qiming ;
    Zhang, Zhongjie
    2023-08-01 | PDF
    This research study aimed at developing a correlation of rut depths measured with Louisiana Transportation Research Center's (LTRC’s) profiler with a 5-point laser system and Department of Transportation and Development (DOTD) Pavement Management System's (PMS’s) profiler with a scanning laser system. For this purpose, the transverse profile data c ...
  • Innovative Methods to Strengthen Internal KYTC Communications
    Innovative Methods to Strengthen Internal KYTC Communications
    Marks, P Gayle ;
    Jasper, Jeff
    2023-08-01 | PDF
    Communication is the linchpin of every organization. Poor communication leads to inefficiencies, frustration among staff, and employee disaffection and disengagement. Although some state transportation agencies have adopted comprehensive strategic plans for internal communications, many have taken a more piecemeal approach, with some Offices and un ...
  • Refining the Lane Guidance System for Snowplow Operators Technical Summary
    Refining the Lane Guidance System for Snowplow Operators [Technical Summary]
    Donath, Max ;
    Rowe, Daniel
    2023-08-01 | PDF
    Snowplow operators work in difficult, often low-visibility conditions. A new system assists drivers in knowing their lane position and warns of approaching obstacles. After operators tested the system over two winters, researchers gathered feedback, revised the system and readied it for the next step in statewide deployment.
  • Evaluating the Use of a NearMiss Reporting Program to Enhance Employee Safety Performance
    Evaluating the Use of a Near-Miss Reporting Program to Enhance Employee Safety Performance
    Dadi, Gabriel B. ;
    Taherpour, Farshid
    2023-08-01 | PDF
    Using safety incidents and crashes to improve safety performance is an outdated and reactive practice in safety and health programs. One component of a modern approach to safety is a near-miss reporting program. This type of program tracks close calls or near misses that do not result in an incident or crash, but which often can be an early indicat ...
  • Domestic Airline Fares Consumer Report First Quarter 2023 Passenger and Fare Information
    Domestic Airline Fares Consumer Report: First Quarter 2023 Passenger and Fare Information
    United States. Department of Transportation
    2023-08-01 | 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 ...
  • District Highway Maintenance Research OnCall ROC Task 07 Radar Emplacement Prediction Tool Exploration and Recommendations Fact Sheet
    District Highway Maintenance Research On-Call (ROC) - Task 07: Radar Emplacement Prediction Tool Exploration and Recommendations [Fact Sheet]
    Ramaswami, Adithya G ;
    McCrink, Matthew H
    2023-08-01 | PDF
    Emerging autonomous aircraft require unique infrastructure to provide vital information to ensure they remain well-clear of other flying objects. While there are many systems designed to provide such functionality, termed detect and avoid (DAA), ground-based radars have emerged as one of the most promising technical solutions to this challenging pr ...
  • Evaluation of Attachments to Concrete Barrier Systems to Deter PedestriansVolume 2 Crash Report
    Evaluation of Attachments to Concrete Barrier Systems to Deter Pedestrians—Volume 2: Crash Report
    Silvestri-Dobrovolny, Chiara ;
    Bligh, Roger
    2023-08-01 | PDF
    The purpose of the tests reported herein was to assess the performance of prioritized attachments to concrete barrier systems according to the safety-performance evaluation guidelines included in the American Association of State Highway and Transportation Officials Manual for Assessing Safety Hardware (MASH), Second Edition. The crash tests for th ...
  • Effect of Low and Moderate Recycled Concrete Aggregate Replacement Levels on Concrete Properties
    Effect of Low and Moderate Recycled Concrete Aggregate Replacement Levels on Concrete Properties
    Lederle, Rita ;
    Selin, Evan
    2023-08-01 | PDF
    This research investigated the effects of incorporating recycled concrete aggregate (RCA) at low replacement levels on the properties of concrete. Four different RCA sources were used, each with different aggregate properties. For each source, replacement levels of 5, 10, and 15% were tested and compared to a control group, which had no RCA. Of the ...
  • Achieving Efficiencies Within ODOT With the Event Streaming Platform
    Achieving Efficiencies Within ODOT With the Event Streaming Platform
    Crow, Mallory ;
    Avery, Paul A
    2023-08-01 | PDF
    The goal of this research is to achieve efficiencies within ODOT for the Event Streaming Platform (ESP). This research queried potential Use Case data from several of the divisions and two of the districts at ODOT with the goal of identifying current tasks that may benefit from automation, tasks that are redundant or use multiple systems to draw a ...
  • Assessment of Transportation Systems Resilience for Vulnerable Communities and Populations Summary
    Assessment of Transportation Systems Resilience for Vulnerable Communities and Populations [Summary]
    Carver, Jennifer Z ;
    Abdelrazig, Yassir
    2023-08-01 | PDF
    This research aimed to develop decision support tools for transportation systems resilience planning pertaining to three vulnerable populations—older adults, ethnic minority groups, and rural populations. Also, it provided resilience policy and planning recommendations for transportation systems to improve the outcomes for vulnerable communities an ...
  • Synthesis of Galvanized Steel Reinforcement Corrosion Performance Summary
    Synthesis of Galvanized Steel Reinforcement Corrosion Performance [Summary]
    Simmons, Ronald ;
    Alexander, Christopher
    2023-08-01 | PDF
    This research was a synthesis of technical literature to help determine whether to allow the use of HDGR to increase durability.
  • Optimizing Reinforcing Steel in 12In and 13In Continuously Reinforced Concrete Pavement CRCP
    Optimizing Reinforcing Steel in 12-In and 13-In Continuously Reinforced Concrete Pavement (CRCP)
    Lee, Heejun ;
    Koirala, Niwesh
    2023-08-01 | PDF
    The performance of continuously reinforced concrete pavement (CRCP) in Texas has been excellent. However, truck traffic in Texas has been increasing, which required thicker slabs. Since TxDOT placed steel at the mid-depth of the slab, the use of thicker slabs increased the distance between top of the slab and longitudinal steel. This increase resul ...
  • Valuation Methodology and Framework for Estimation of RightofWay Value
    Valuation Methodology and Framework for Estimation of Right-of-Way Value
    Kraus, Edgar ;
    Holik, William
    2023-08-01 | PDF
    TxDOT manages over one million acres of right-of-way, which is used by a variety of third parties to install facilities such as utilities, saltwater pipelines, and small cell nodes. Third parties include common carriers, who install facilities for public use, and private parties, who install facilities for private use. Common carriers access the ri ...
  • Literature Review Synthesizing the Current and Potential ATMA Applications
    Literature Review Synthesizing the Current and Potential ATMA Applications
    Miller, Erika ;
    Young, Chandler
    2023-08-01 | PDF
    There are numerous applications of the Autonomous Maintenance Technology (AMT) that have yet to be fully utilized or widely shared. There are many slow-moving operations conducted by Departments of Transportation (DOTs) with an attenuator (e.g., work zone set up, operations, take down, repairs, mowing, sweeping), platooning of two or more vehicles ...
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