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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 5841 - 5860 of 36053 results
  • Use of Compost for Permanent Vegetation Establishment and Erosion Control
    Use of Compost for Permanent Vegetation Establishment and Erosion Control
    Owen, Dylan ;
    Davis, Allen P
    2019-05-01 | PDF
    Soil erosion management is a major environmental challenge facing highway construction. This project analyzed possible sustainable improvements to current standard procedures for final grade turfgrass establishment. Two compost types, biosolids and greenwaste, and two compost blends, 2:1 topsoil:biosolids and 2:1 topsoil:greenwaste, were compared w ...
  • Sediment Control Log Performance Design and Decision Matrix for Field Applications
    Sediment Control Log Performance, Design, and Decision Matrix for Field Applications
    Chapman, John ;
    Wilson, Bruce
    2019-05-01 | PDF
    Significant time and money are currently being expended in the purchase and installation of sediment control logs. These logs often fail because of poorly understood performance limits and improper installation. This project investigated the performance limits by determining the flow and sediment removal characteristics of different types of logs. ...
  • Effects of Temperature Segregation on the Volumetric and Mechanistic Properties of Asphalt Mixtures
    Effects of Temperature Segregation on the Volumetric and Mechanistic Properties of Asphalt Mixtures
    Mohammad, Louay N. ;
    Kim, Minkyum
    2019-05-01 | PDF
    Thermal segregation is a non-uniform temperature distribution across the mat of uncompacted asphalt mixtures during paving operation. The first investigation on temperature segregation was attempted in the late 1990s. The primary concern of temperature segregation phenomenon is the detrimental effect that may occur on the quality and performance of ...
  • Development of Thermoelectric Exhaust Generator TEG Heat Recovery Systems for Marine Diesels
    Development of Thermoelectric Exhaust Generator (TEG) Heat Recovery Systems for Marine Diesels
    Kimball, Richard ;
    Wallace, Travis
    2019-04-30 | PDF
    Thermoelectric waste heat recovery is an enabling technology that can be used to increase the overall plant efficiency of marine and industrial power plants by recovering heat from the exhaust that would otherwise be wasted. Using a thermoelectric generator (TEG), this energy can be recovered and converted to usable electricity using a solid state ...
  • Lowdistraction Interaction
    Low-distraction Interaction
    Lane, Ian ;
    Selker, Ted
    2019-04-29 | PDF
    We know that talking or texting while involved in a complex sensorimotor task like driving is dangerous. In such situations, interruptions from notifications can negatively impact primary task performance as well. This paper investigates the impact of attending to such notifications. In our study, participants were engaged in a primary task with va ...
  • Implementation of Smart Equipment in Field Construction
    Implementation of 'Smart Equipment' in Field Construction
    Meehan, Christopher L. ;
    Baker, William J
    2019-04-29 | PDF
    The goal of this study was to examine the potential benefit of Continuous Compaction Control (CCC) technology, which allows for near continuous collection of compaction effort information during the compaction process of earthwork construction operations. For this project, a CCC retrofit kit was installed on an existing smooth drum compaction rolle ...
  • SDDOT Maintenance Decision Support System Operation Plan
    SDDOT Maintenance Decision Support System Operation Plan
    Harper, Christofer ;
    Tran, Daniel
    2019-04-26 | PDF
    Maintenance of transportation assets can be complex due to varying weather effects of snow, ice, wind, temperature, and other factors. The goal of DOTs conducting weather event operations and maintenance is to provide safe and clear roadways for motorists. Currently, the South Dakota Department of Transportation (SDDOT) uses the Maintenance Decisio ...
  • Safety Evaluation of Pavement Surface Characteristics with 1mm 3D Laser Imaging
    Safety Evaluation of Pavement Surface Characteristics with 1mm 3D Laser Imaging
    Wang, Kelvin C. P. ;
    Li, Joshua Q.
    2019-04-24 | PDF
    This report documents the applications of 1mm 3D laser imaging technology to perform safety evaluation of pavements. Several state-of-the-art data collection devices were used for data collection, including the OSU 3D laser imaging technology (named as PaveVision3D Ultra) for 1mm 3D pavement surface data, the Inertial Measurement Unit (IMU), Grip T ...
  • The Intelligent Mobility Meter Portable FineGrained Data Collection and Analysis of Pedestrian Cyclist and Motor Vehicle Traffic
    The Intelligent Mobility Meter – Portable Fine-Grained Data Collection and Analysis of Pedestrian, Cyclist, and Motor Vehicle Traffic
    Pires, Bernardo R. ;
    Ranganath, Shreyank
    2019-04-23 | PDF
    The Intelligent Mobility Meter (IMM) is a portable data collection and analysis platform which will be able to collect fine-grained statistics on pedestrian, cyclist and vehicular traffic. The objective of the IMM project is to provide accurate and actionable data to government officials and transit advocates. The meter is an expansion of the UTC T ...
  • Promoting CSET Outreach Activities through Safety Data Management and Analysis in RITI Communities
    Promoting CSET Outreach Activities through Safety Data Management and Analysis in RITI Communities
    Wang, Yinhai ;
    Jiang, Ying
    2019-04-19 | PDF
    Traffic crashes are one of the leading causes of death among all people in the United States, but the rates among American Indian and Alaska Native (AIAN) populations are significantly higher than other groups. In fact, rural areas in general are disadvantaged from a traffic safety perspective due to the lack of funding and challenges in safety imp ...
  • Understanding and Guiding Pedestrian and Crowd Motion [supporting datasets]
    Yang, Dongfang ;
    Redmill, Keith
    2019-04-19 | ZIP
    The CITR dataset was collected in the controlled experiments that were conducted in a parking lot near the facility of Control and Intelligent Transportation Research (CITR) Lab at The Ohio State University (OSU). The controlled experiments consist of a series of fundamental vehicle-crowd interactions in the hope of analyzing interactive pedestrian ...
    Dataset Supporting Files
  • Develop a Regional MultiSource Database System for Safety Data Management and Analysis in RITI Communities in Washington State
    Develop a Regional Multi-Source Database System for Safety Data Management and Analysis in RITI Communities in Washington State
    Wang, Yinhai ;
    Zeng, Ziqiang
    2019-04-19 | PDF
    Rural, Isolated, Tribal, and Indigenous (RITI) communities across the United States are disadvantaged from a transportation safety perspective. Particular concern is focusing on rural road safety. Since RITI communities often do not have the capability and resources to sufficiently solve roadway safety problems, several challenges are encountered f ...
  • Actuation System For City-Wide Sensing and Ride Distribution Using Managed Vehicular Fleets [supporting datasets]
    Zhang, Pei ;
    Chen, Xinlei
    2019-04-15 | ZIP
    This is a dataset of location data used for actuated taxi data related to paper:Chen, X., Xu, S., Fu, H., Joe-Wong, C., Zhang, L., Noh, H. Y., & Zhang, P. (2019, April). ASC: actuation system for city-wide crowdsensing with ride-sharing vehicular platform. In Proceedings of the Fourth Workshop on International Science of Smart City Operations and P ...
    Dataset Supporting Files
  • 3D Highway Design Model Cost Benefit Analysis
    3D Highway Design Model Cost Benefit Analysis
    Mitchell, Alexa ;
    Gensib, Elyssa
    2019-04-15 | PDF
    Since 2012, the Michigan Department of Transportation (MDOT) has progressively integrated 3D models into its project delivery processes as a reference information documents (RID) and initiated this research project to understand the viability of expanding the use of 3D models. The primary objectives of this research project were to research and eva ...
  • Actuation System For CityWide Sensing and Ride Distribution Using Managed Vehicular Fleets
    Actuation System For City-Wide Sensing and Ride Distribution Using Managed Vehicular Fleets
    Zhang, Pei ;
    Chen, Xinlei
    2019-04-15 | PDF
    Vehicular mobile crowdsensing (MCS) enables a lot of smart city applications, such as smart transportation, environmental monitoring etc. Taxis provide a good platform for MCS due to their long operational time and city-scale coverage. However, taxis, as a non-dedicated sensing platform, does not guarantee high sensing coverage quality (large and b ...
  • Analytical Modeling Framework to Assess the Economic and Environmental Impacts of Residential Deliveries, and Evaluate Sustainable City Logistics Strategies Dataset
    Jaller, Miguel ;
    Pahwa, Anmol
    2019-04-15 | ZIP
    In the last decade, e‐commerce has grown substantially, increasing business‐to‐business, business‐to‐consumer, and consumer‐to‐consumer transactions. As a result, there has been a continuous growth in last mile operations, especially deliveries to residential areas, bringing along externalities such as congestion, air and noise pollution, and energ ...
    Dataset Supporting Files
  • Sign Replacement Strategy
    Sign Replacement Strategy
    Rasdorf, William J. ;
    Machado, Patricia
    2019-04-12 | PDF
    The major objective of this study is to develop and analyze systematic and efficient sign replacement strategies for the North Carolina Department of Transportation (NCDOT). The research team developed a microscopic simulation model to study sign replacement strategies and analyze the trade-off between sign cost and condition. This model simulates ...
  • Developing and Applying an Analysis Methodology to Identify Flow Generation Influences between Vessel and Truck Shipments
    Developing and Applying an Analysis Methodology to Identify Flow Generation Influences between Vessel and Truck Shipments
    Monsreal, Mario ;
    Kruse, Jim
    2019-04-08 | PDF
    Truck activity is logically connected to vessel activity at a port. In turn, vessel activity is also influenced by truck shipments. Although one might expect a direct and straightforward relation between these two types of shipments, that is rarely the case. For instance, many maritime containers carry consolidated cargos that have multiple and dif ...
  • Optimization of Emergency Traffic Patrols ETP Operations
    Optimization of Emergency Traffic Patrols (ETP) Operations
    Haghani, Ali ;
    Daneshgar, Farzad
    2019-04-08 | PDF
    Effective incident management relies on many tools to lessen the overall impact of crashes, road debris, and disabled vehicles. Many urban areas have adopted freeway service patrol (FSP) programs that patrol the freeway network searching for incidents, providing aid to motorists, and assisting with incident management and clearance. FSP management ...
  • Assessment of PolyCarb Flexogrid Bridge Deck Overlay System
    Assessment of Poly-Carb Flexogrid Bridge Deck Overlay System
    Anderson, Ian A.
    ORCID ICON IMG
    2019-04-08 | PDF
    Mark-163 Flexogrid by Poly-Carb is a high friction bridge deck overlay system that is designed to be used for the waterproofing and skid proofing of bridge decks. This product was tested on Town Highway 4, Bridge 8 in Waterford VT, as it passes over I-93 in May 2013. The Flexogrid system has performed as expected, providing good skid resistance, an ...
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