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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 5021 - 5040 of 36908 results
  • Congestion Reduction Through Efficient Empty Container Movement Under Stochastic Demand
    Congestion Reduction Through Efficient Empty Container Movement Under Stochastic Demand
    Dessouky, Maged M. ;
    Carvajal, Santiago
    2020-06-01 | PDF
    In today’s world, there is a significant amount of investigation regarding how to efficiently distribute loaded containers from the ports to the consignees. However, to fully maximize the process and become more environmentally friendly, one should also study how to allocate the empty containers created by these consignees. This is an essential par ...
  • Best Management Practices for PostConstruction Restoration of RightsofWay in Saltwater Marshes Estuaries and Other Tidally Influenced Areas
    Best Management Practices for Post-Construction Restoration of Rights-of-Way in Saltwater Marshes, Estuaries, and Other Tidally Influenced Areas
    Christian, Jason ;
    Kim, Sonny
    2020-06-01 | PDF
    Saltwater marshes or salt marshes are capable of providing to fauna and flora a biologically desirable environment while operating as a sink for sequestering large amounts of heavy metals. Salt marshes have the highest value of net primary productivity among terrestrial and wetland ecosystems and are adversely impacted and threatened by land-use ch ...
  • Impact of Crosswalk Lighting Improvements on Pedestrian SafetyA Literature Review
    Impact of Crosswalk Lighting Improvements on Pedestrian Safety–A Literature Review
    Mitran, Elisabeta ;
    Codjoe, Julius
    2020-06-01 | PDF
    This study conducted a nationwide literature review to obtain the state of knowledge on the relationship between lighting conditions and pedestrian crashes, assessing how lighting countermeasures at crosswalks improve pedestrian safety. The study gathered information on crosswalk lighting treatments, existing national guidelines for lighting at ped ...
  • Educational and Workforce Development Through Creation of Programs in Transportation To Generate Future Careers for Our Students in Navajo Nation Region
    Educational and Workforce Development Through Creation of Programs in Transportation To Generate Future Careers for Our Students in Navajo Nation Region
    Ehteshami, Gholam R
    ORCID ICON IMG
    2020-06-01 | PDF
    Navajo Technical University (NTU) in New Mexico, has made a partnership with the Tran-SET regional center at Louisiana State University, LSU. We have provided learning and training the Native American students in transportation-related Industries to some of STEM students at NTU through these partnerships opportunities. The program was designed and ...
  • Evaluation of Cost Effectiveness Performance and Selection Criteria for Concrete Structures
    Evaluation of Cost Effectiveness, Performance, and Selection Criteria for Concrete Structures
    Pei, Shiling ;
    Wehbe, Nadim I.
    2020-06-01 | PDF
    A study was conducted to develop recommendations for short span concrete structure type selection based on analyses of existing structure costs and performance data from South Dakota roadway systems. Through a combination of data sources, including the PONTIS database, local owner and inspector surveys, past project bidding costs, and typical bridg ...
  • KYTC Maintenance Field Operations Guide Supplement
    KYTC Maintenance Field Operations Guide Supplement
    Gibson, Bryan ;
    Wallace, Candice
    2020-06-01 | PDF
    The Kentucky Transportation Cabinet (KYTC) is tasked with managing an asset portfolio that includes over 27,500 miles of roadway and 9,000 bridges. Keeping these assets in sound condition demands significant effort from KYTC’s Division of Maintenance, which includes activities ranging from mowing and litter pickup to cleaning out culverts and perfo ...
  • Implementation of Measuring While Drilling Shafts in Florida FLMWDS
    Implementation of Measuring While Drilling Shafts in Florida (FLMWDS)
    McVay, Michael ;
    Rodgers, Michael
    2020-06-01 | PDF
    Measuring while drilling (MWD) is the application of monitoring and recording drilling data during the drilling process. Recent geotechnical MWD efforts have shown that specific energy obtained from MWD can be directly correlated to the unconfined compression strength (qu) of rock. This is advantageous as foundations and structures supported by roc ...
  • Development of a Procedure for Evaluating and Approving Liquid AntiStrip Agents
    Development of a Procedure for Evaluating and Approving Liquid Anti-Strip Agents
    Karki, Pravat ;
    Arambula-Mercado, Edith
    2020-06-01 | PDF
    The objectives of this project were to determine the extent to which liquid anti-strip agents (ASAs) can affect asphalt mixture stability during and after construction, determine the effective laboratory methods/procedures to evaluate asphalt mixture stability, and develop an approval system for liquid ASA with respect to mixture stability. The pro ...
  • Uncertainty Quantification of Cyber Attacks on Connected Vehicles and Infrastructure Part 1
    Uncertainty Quantification of Cyber Attacks on Connected Vehicles and Infrastructure (Part 1)
    Martin, James J ;
    Comert, Gurcan
    2020-06-01 | PDF
    Multiple studies have explored different forms of connected vehicle applications, such as queue warning and cooperative adaptive cruise control (CACC), in standard wireless access in vehicular environments (WAVE), and dedicated short-range communication (DSRC) network environments. A major focus of the ongoing research is to consider a hybrid vehic ...
  • Assessment of Structural Degradation for Bridges and Culverts
    Assessment of Structural Degradation for Bridges and Culverts
    Ziehl, Paul ;
    Cousins, Tommy
    2020-06-01 | PDF
    Degradation of bridge components is an ongoing challenge facing the South Carolina Department of Transportation (SCDOT). This report addresses current and evolving technologies to assist with condition assessment of bridges and culverts while increasing worker safety. Technologies investigated include aerial drones, robotic crawlers, and jetyaks. I ...
  • Improving Transportation Information Resilience: Error Estimation for Networked Sensor Data [supporting datasets]
    Fan, Yueyue ;
    Yang, Han
    2020-06-01 | PDF
    The aim of this script is to automate the process of directed network graph formation, i.e., creation of incidence matrix, node adjacency matrix, and map the sensors to appropriate links. The data used for creating the freeway network is obtained from open street maps, whereas, the data for sensors is obtained from PeMS. The results of the algorith ...
    Dataset Supporting Files
  • Virtual Peer Exchange Structural Approaches to Innovation Programs STIC June 1 2 2020
    Virtual Peer Exchange: Structural Approaches to Innovation Programs & STIC: June 1 & 2, 2020
    The Langdon Group
    2020-06-01 | PDF
    Utah Department of Transportation (UDOT) in partnership with Federal Highway Administration (FHWA) hosted a two-day Virtual Peer Exchange on June 1 and 2, 2020. This peer exchange was originally planned to be a three-day in person meeting. To use more innovative platforms, this meeting was shifted to a virtual/ online platform and condensed to two ...
  • Defensive Driving for Snowplow Operators
    Defensive Driving for Snowplow Operators
    Camden, Matthew C. ;
    Hickman, Jeffrey S.
    2020-06-01 | PDF
    An often-overlooked aspect of winter maintenance operations is snowplow operators’ risk of a crash. The goal of this project was to examine key causes of collisions involving snowplows, identify defensive driving strategies snowplow operators can use to prevent crashes, and develop two comprehensive and engaging snowplow operator training modules o ...
  • Congestion Reduction Through Efficient Empty Container Movement Under Stochastic Demand [supporting datasets]
    Dessouky, Maged M. ;
    Carvajal, Santiago
    2020-06-01 | PDF
    In today’s world, there is a significant amount of investigation regarding how to efficiently distribute loaded containers from the ports to the consignees. However, to fully maximize the process and become more environmentally friendly, one should also study how to allocate the empty containers created by these consignees. This is an essential par ...
    Dataset Supporting Files
  • Structural Fiber Reinforcement to Reduce Deck Reinforcement and Improve LongTerm Performance
    Structural Fiber Reinforcement to Reduce Deck Reinforcement and Improve Long-Term Performance
    McRory, Jared W ;
    Pozo-Lora, Fray F
    2020-06-01 | PDF
    The use of deicing salts on highway bridges has decreased the service life of bridge decks due to the accelerated corrosion of the steel reinforcement. The use of Glass Fiber Reinforced Polymer (GFRP) in bridge decks as a means of corrosion-mitigation has been met with some success; however, GFRP is a linear-elastic material that does not exhibit a ...
  • Significance and Prospects of Transportation Planning at the Megaregional Scale
    Significance and Prospects of Transportation Planning at the Megaregional Scale
    Oden, Michael ;
    Sciara, Gian-Claudia
    2020-06-01 | PDF
    Megaregions are defined as connected networks or clusters of metropolitan areas where the U.S. population and employment growth is increasingly concentrating. Fashioning strategies and new institutional arrangements to better manage growth in these tightly connected metropolitan areas has been identified a crucial challenge calling for new thinking ...
  • Enhancing Extension Recommendations for Improving Herbicide Resistance Management on Georgia Roadsides
    Enhancing Extension Recommendations for Improving Herbicide Resistance Management on Georgia Roadsides
    McCullough, Patrick ;
    Shilling, Donn
    2020-06-01 | PDF
    The presence of Italian ryegrass on Georgia roadsides reduces motorist site visibility and increases maintenance costs for the DOT. Herbicide selection is limited on roadsides due to economics and the susceptibility of roadside turfgrasses to injury. Consequently, agronomists often apply the same chemistries every year without rotating herbicide mo ...
  • High Friction Surface Treatments HFSTs for Bridge Decks
    High Friction Surface Treatments (HFSTs) for Bridge Decks
    Abernathy, Craig
    2020-06-01 | PDF
    High Friction Surface Treatments (HFSTs) are pavement surfacing systems that provide skid-resistant, and deck sealing properties not typically associated with conventional materials. The spot application of a thin layer of durable, high friction aggregates as a topping on specially engineered resin or a polymer binder affords long-lasting traction ...
  • Campus Automated Shuttle Service Deployment Initiative
    Campus Automated Shuttle Service Deployment Initiative
    Lin, Pei-Sung ;
    Kourtellis, Achilleas
    2020-06-01 | PDF
    Most mid-size and large open-campus universities have courtesy shuttle or bus service as an important mode of transportation around campus and in nearby vicinities. Given on-campus traffic conditions, traffic congestion between classes, the nature of short-distance trips within or around campus, and difficulty with finding parking spaces, automated ...
  • Risk of Snake Entanglement Is Affected by Installation Method of Erosion Control Blankets
    Risk of Snake Entanglement Is Affected by Installation Method of Erosion Control Blankets
    Ward, Krista J ;
    Jobe, Kasey L
    2020-06-01 | PDF
    At the conclusion of road construction projects, an erosion control product (e.g., blankets, spray mulch) is installed to reduce soil loss and promote plant growth. Wildlife, such as snakes (suborder Serpentes), are prone to entanglement in erosion control blankets (ECBs) that contain polypropylene mesh with fused apertures. Previous reports have n ...
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