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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 5521 - 5540 of 36022 results
  • Geotechnical Asset Management GAM Through Thermal Modeling and PostConstruction Thermal Monitoring of Highway Embankments for the Dalton Highway MP 09 Project
    Geotechnical Asset Management (GAM) Through Thermal Modeling and Post-Construction Thermal Monitoring of Highway Embankments for the Dalton Highway MP 0-9 Project
    McGroarty, Steve ;
    Billing, Matthew
    2019-08-01 | PDF
    Geotechnical Asset Management (GAM) involves geotechnical features that can affect the performance of a transportation system and includes the design and construction of road embankments to achieve lowest possible life-cycle asset costs. Road embankments constructed on ice-rich permafrost must promote a thermally stable subgrade in order to minimiz ...
  • Confinement Effect of Metal Railing Narrow Baseplates on Adhesive Anchor Breakout Resistance
    Confinement Effect of Metal Railing Narrow Baseplates on Adhesive Anchor Breakout Resistance
    Suksawang, Nakin
    2019-08-01 | PDF
    An updated AASHTO LRFD Bridge Design Specification introduces a new provision for the design of anchors that borrows from the American Concrete Institute Building Code Requirements for Structural Concrete (ACI 318-14). Unfortunately, the ACI 318-14 adhesive anchor design provisions are very conservative by not taking the compressive confinement eff ...
  • Guidelines for Prioritization of Bridge Replacement Rehabilitation and Preservation Projects
    Guidelines for Prioritization of Bridge Replacement, Rehabilitation, and Preservation Projects
    Whelan, Matthew J ;
    Cavalline, Tara L
    2019-07-30 | PDF
    Identification and prioritization of bridge replacement projects is one of the most critical aspects of an effective Bridge Management System. Currently, North Carolina Department of Transportation (NCDOT) uses a Priority Replacement Index (PRI) that has developed as an ad-hoc ranking scale that lacks transparency between performance measures and p ...
  • Evaluation of the Michigan Department of Transportations Highway Safety Programs
    Evaluation of the Michigan Department of Transportation's Highway Safety Programs
    Kay, Jonathan J. ;
    Gates, Timothy J.
    2019-07-26 | PDF
    The Michigan Department of Transportation (MDOT) was an early stakeholder in support of the Federal Highway Administration’s (FHWA) Towards Zero Death (TZD) concept, a vision of eliminating roadway fatalities and serious injuries nationwide. As a part of its TZD efforts, MDOT sponsored research to review and evaluate the engineering-related element ...
  • Development and Implementation of Sustainable Transportation Resilience Indicators [supporting datasets]
    Abkowitz, Mark ;
    Camp, Janey
    2019-07-25 | ZIP
    Communities are complex systems subject to a variety of hazards that can result in significant disruption to critical functions. Community resilience assessment is gaining popularity as a means to help communities better prepare for, respond to, and recover from disruption. Sustainable resilience, a recently developed concept, requires communities ...
    Dataset Supporting Files
  • Final 50 Feet of the Urban Goods Delivery System Pilot Test of an Innovative Improvement Strategy
    Final 50 Feet of the Urban Goods Delivery System: Pilot Test of an Innovative Improvement Strategy
    Goodchild, Anne V. ;
    Ivanov, Barbara
    2019-07-23 | PDF
    The “Final 50 Feet of the Urban Goods Delivery System: Pilot Testing Innovative Improvement Strategies” project will provide new data-based knowledge and insights about the effects of truck parking strategies proposed in the City of Seattle, before they are broadly implemented. Goals of the project are reduction in dwell time, the time a truck is p ...
  • Personalized Trip Planner for Seniors
    Personalized Trip Planner for Seniors
    Eskenazi, Maxine
    ORCID ICON IMG
    2019-07-23 | PDF
    The Personalized Trip Planner for Seniors project has this year produced a completer dialog agent that functions in real time over the phone called GetGoing. The goal of the project has been to create a transportation information system that is usable by seniors. GetGoing takes into consideration changes in cognition as we age in order to make the ...
  • Connected Vehicle Infrastructure for a Smart City
    Connected Vehicle Infrastructure for a Smart City
    Peha, Jon M
    ORCID ICON IMG
    2019-07-22 | PDF
    Connected vehicle technologies have been tested and deployed for several types of applications. One category is related to communications among vehicles and fixed infrastructure of roadside units to enhance road safety by avoiding crashes or mitigating the severity of accidents. On the other hand, non safety-critical applications may range from mob ...
  • Early Opportunities to Apply Automation in California Managed Lanes
    Early Opportunities to Apply Automation in California Managed Lanes
    Liu, Hao ;
    McKeever, Benjamin B.
    2019-07-22 | PDF
    Work under this project identified the specific opportunities to capitalize on the state’s managed lane network as early experimental and deployment sites for connected automated vehicles. The managed lanes are important in this context because they provide a means of concentrating equipped vehicles in close proximity to each other, with some degre ...
  • Unmanned Surface Vessels for Bridge Scour Monitoring
    Unmanned Surface Vessels for Bridge Scour Monitoring
    Schroeder, Brian ;
    Haug, Pete
    2019-07-18 | PDF
    Scour at bridge substructure units can cause undermining of footings and exposure of piles, which can lead to bridge failure. Monitoring of the stream bed elevations around a scour critical bridge to identify whether or not scour is occurring during a high-flow event is critical. Working on or near the water may be dangerous during these events. Th ...
  • Connecticut Pedestrian Safety Guide
    Connecticut Pedestrian Safety Guide
    Auguste, Marisa E ;
    Jackson, Eric D.
    2019-07-17 | PDF
    The Connecticut Pedestrian Safety Guide (PSG) is aimed at providing a comprehensive framework for reducing pedestrian-involved collisions on all public roads. The PSG addresses state-specific pedestrian issues identified from yearlong observations and analysis of pedestrian behaviors at intersections. The PSG establishes targeted statewide goals, o ...
  • Spatial Analysis of Accessible Seating Area on the Next Generation Passenger Rail Cars Using 3-D Modeling and Digital Human Modeling [supporting dataset]
    Hunter-Zaworski, K M
    ORCID ICON IMG
    2019-07-16 | ZIP
    This project extended research that was conducted for the Federal Railroad Administration (FRA) in collaboration with the Passenger Rail Investment and Improvement Act Next Generation Equipment Committee on the development of specifications for the next generation of passenger rail cars. The FRA research project conducted a preliminary spatial anal ...
    Dataset Supporting Files
  • Incentive Design in Ride Sharing Platforms
    Incentive Design in Ride Sharing Platforms
    Jacquillat, Alexandre
    ORCID ICON IMG
    2019-07-16 | PDF
    Ride sharing platforms have quickly become a widespread phenomenon. However, mismatches between supply and demand at peak times (temporal mismatch) or in some locations (spatial mismatch) motivate the design of incentive systems to align the behaviors of riders and drivers. This project proposes a novel economic mechanism that leverages new technol ...
  • Building a Pilot PeertoPeer Platform for RideSharing in Lawrence County
    Building a Pilot Peer-to-Peer Platform for Ride-Sharing in Lawrence County
    Jacquillat, Alexandre
    ORCID ICON IMG
    2019-07-16 | PDF
    Lawrence County, Pennsylvania is primarily a rural area, with local employees living across a wide geographic radius. An estimated 40% of commuters leave the County during their daily work-related commute. An important opportunity to reduce the costs of travel lies in technological solutions to better connect commuters and promote shared modes of t ...
  • Pedestrian Incident Detection in the Rail RightofWay using Artificial Intelligence
    Pedestrian Incident Detection in the Rail Right-of-Way using Artificial Intelligence
    Cunningham, Chris ;
    Avr, Azhagan
    2019-07-12 | PDF
    This research project builds on North Carolina Department of Transportation (NCDOT) RP 2015-18 (“Reduction in Railroad Right-of-Way Incidents”) and 2017-15 (“Rail Corridor Trespass Severity Assessment”). This effort focused on the development of a working prototype train-mounted camera system that will capture trespassing events in the nearby vicin ...
  • Connected Vehicle Pilot Deployment Program Performance Measurement and Evaluation Support Plan Phase 2 UPDATE Tampa Hillsborough Expressway Authority
    Connected Vehicle Pilot Deployment Program, Performance Measurement and Evaluation Support Plan, Phase 2 UPDATE – Tampa Hillsborough Expressway Authority
    Concas, Sisinnio ;
    Kourtellis, Achilleas
    2019-07-08 | PDF
    The Performance Measurement and Evaluation Support Plan for the Connected Vehicle Pilot Deployment Program Phase 2, Tampa Hillsborough Expressway Authority, outlines the goals and objectives for the Pilot as well as the performance metrics. The document addresses the issues, operational needs, and the targeted improvements for the Pilot focus areas ...
  • Quantifying Results of Key Transit Investments
    Quantifying Results of Key Transit Investments
    Chandra, Shailesh ;
    Balali, Vahid
    2019-07-08 | PDF
    Caltrans Division of Rail and Mass Transportation (DRMT) administers several public transportation programs in California from the state as well as federal funding sources. There is a need for DRMT management and staff to be able to analyze expenditures on projects that it administers for the state and federal public transportation programs. In ord ...
  • Debonded Strands in Prestressed Concrete Bridge Girders
    Debonded Strands in Prestressed Concrete Bridge Girders
    Osman, Mahad ;
    French, Catherine
    2019-07-02 | PDF
    There are three potential options to reduce end stresses in prestressed concrete bridge girders: drape strands, debond strands, or a combination of the two. In the draping option, a portion of the strands are raised from harp points within the girder to reduce the strand eccentricity at the girder ends. Large vertical reactions are required at the ...
  • Driving Etiquette
    Driving Etiquette
    Peng, Huei ;
    Huang, Xianan
    2019-07-01 | PDF
    This project focuses on establishing driving etiquette based on naturalistic driving behavior of human drivers to serve as the basis for the design of autonomous vehicles to drive "like safe human drivers." The project queried a large amount of naturalistic driving data from the Ann Arbor, Michigan connected vehicle deployment. The data were used t ...
  • Protecting Critical Civil Infrastructure Against Impact from Commercial Vehicles Phase I
    Protecting Critical Civil Infrastructure Against Impact from Commercial Vehicles - Phase I
    Linzell, Daniel G. ;
    Kim, Yong-Rak
    2019-07-01 | PDF
    Bridge pier columns are critical load carrying elements and are often positioned in a fashion where it is neither possible nor economically feasible to place protective devices around them. Pier columns could be under-designed for commercial vehicle impacts and additional events that could occur, such as blast. The project is focusing on improving ...
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