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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 5941 - 5960 of 36055 results
  • Assessment of the BDM Waterproofing Membrane System
    Assessment of the BDM Waterproofing Membrane System
    Anderson, Ian A.
    ORCID ICON IMG
    2019-03-21 | PDF
    Concrete bridge deck deterioration is one of the most extensive bridge maintenance problems affecting service life. Moisture and chloride intrusion can accelerate concrete bridge deck distress. Waterproofing membranes, when applied properly, extend the life of the bridge decks delaying the need for rehabilitation. They do this by preventing the pen ...
  • Regulating the Ride Lessons on the Evolution of Dockless Bikeshare Policy in American Cities
    Regulating the Ride: Lessons on the Evolution of Dockless Bikeshare Policy in American Cities
    Wood, James ;
    Hamidi, Shima
    2019-03-15 | PDF
    Throughout the U.S. and elsewhere, a growing number of dock-less bikeshare programs are being launched and managed to varying outcomes. Typically operated by private-sector investors, these programs represent a low-cost and visible means of improving personal mobility for residents and visitors. Still, many cities have allowed the operation of bike ...
  • Developing an Interactive Baseline Data Platform for Visualizing and Analyzing Rural Crash Characteristics in RITI Communities Interactive Crash Data Visualization and Analyses in RITI Communities
    Developing an Interactive Baseline Data Platform for Visualizing and Analyzing Rural Crash Characteristics in RITI Communities: Interactive Crash Data Visualization and Analyses in RITI Communities
    Zhang, Guohui ;
    Prevedouros, Panos D
    2019-03-14 | PDF
    This project focused on developing an interactive baseline crash data platform, termed as Rural Crash Visualization Tool System (RCVTS), to visualize and analyze rural crash characteristics in RITI communities. More than 975 thousand crash records were collected in the state of Alaska, Idaho, and Washington, from 2010 to 2016. Data fusion is applie ...
  • Regionalized Urbansuburban Collector Road Safety Performance Functions
    Regionalized Urban-suburban Collector Road Safety Performance Functions
    Donnell, Eric T. ;
    Gayah, Vikash V.
    2019-03-14 | PDF
    The purpose of this project was to estimate regionalized safety performance functions (SPFs) for urban and suburban collector roads and at-grade intersections using roadway inventory and crash data from state-owned roadways in Pennsylvania. Five years of crash data (2013-2017) were appended to traffic volume and roadway and roadside features in ord ...
  • A Study of the Integrated Parking and Ridesharing PricingIncentives and their Social and Environmental Impacts in Metropolitan Areas
    A Study of the Integrated Parking and Ridesharing Pricing/Incentives and their Social and Environmental Impacts in Metropolitan Areas
    Ma, Rui ;
    Zhang, Michael
    2019-03-13 | PDF
    The potential rapid growth of paid ridesharing services brings a marketplace to utilize the empty seats in commuting vehicles. Yet few studies of morning commute have included paid ridesharing in their analysis. This research formulates a continuous-time dynamic ridesharing problem for a single bottleneck in the morning commute. Travelers' choice o ...
  • R06BTechniques to Fingerprint Construction Materials
    R06B-Techniques to Fingerprint Construction Materials
    Bradbury, Rick ;
    Nener-Plante, Derek
    2019-03-11 | PDF
    The objectives identified when applying for implementation assistance were as follows: Determine which material properties can be accurately identified using portable XRF. Materials to be included in the proof-of-concept are: Traffic paint – measure Titanium content and check for dilution. Asphalt binder – check for presence of wear metals and lubr ...
  • Aerodynamic Equilibrium and Stability in Ventilation and Air Quality Control of Complex Urban Tunnels
    Aerodynamic Equilibrium and Stability in Ventilation and Air Quality Control of Complex Urban Tunnels
    Tan, Zhen ;
    Gao, H. Oliver
    2019-03-10 | PDF
    Modern urban vehicular tunnels generally have a branched structure and complex nonlinear aerodynamics. The authors established and analyzed the 1-D aerodynamic equations and pollutant dispersion model in such bifurcate hydraulic networks. To design a tractable model that captures system complexity, the authors proposed a novel piecewise-affine (PWA ...
  • Estimating MultiClass Dynamic OriginDestination Demand Through a ForwardBackward Algorithm on Computational Graphs
    Estimating Multi-Class Dynamic Origin-Destination Demand Through a Forward-Backward Algorithm on Computational Graphs
    Ma, Wei ;
    Pi, Xidong
    2019-03-09 | PDF
    Transportation networks are unprecedentedly complex with heterogeneous vehicular flow. Conventionally, vehicle classes are considered by vehicle classifications (such as standard passenger cars and trucks). However, vehicle flow heterogeneity stems from many other aspects in general, e.g., ride-sourcing vehicles versus personal vehicles, human driv ...
  • Recycled Asphalt Shingles RAS in Town Gravel RoadsInitial Report
    Recycled Asphalt Shingles (RAS) in Town Gravel Roads-Initial Report
    Anderson, Ian A.
    ORCID ICON IMG
    2019-03-06 | PDF
    Together, VTrans and VTANR-DEC are working to develop the use of Recycled Asphalt Shingles (RAS) as an aggregate additive to gravel roads. The idea for this project stemmed from a 2002 pilot of a RAP/RAS/Gravel used by Vermont towns in 2002 [1]. Available literature from Minnesota DOT (2014) and Iowa DOT (1997) show the beneficial use of RAS in gra ...
  • Modeling Driver Physiological State Using EEG Under Auditory Realtime Travel Information Provision
    Modeling Driver Physiological State Using EEG Under Auditory Real-time Travel Information Provision
    Agrawal, Shubham ;
    Benedyk, Irina
    2019-03-05 | PDF
    Modeling driver physiological state using EEG under auditory real-time travel information rovision poster presented on March 5, 2019 at the 105th Purdue Road School Transportation Conference and Expo, Purdue University, West Lafayette.
  • Alabama Department of Transportation Arkansas Department of Transportation Kentucky Transportation Cabinet Research Peer Exchange Report
    Alabama Department of Transportation, Arkansas Department of Transportation, & Kentucky Transportation Cabinet Research Peer Exchange Report
    Arkansas. Department of Transportation. System Information and Research Division. Research Section.
    2019-03-04 | PDF
    In accordance with 23 CFR 420, the Arkansas Department of Transportation’s (ARDOT) Research Section conducted a multistate peer exchange in Hot Springs, AR from March 4th through March 7th, 2019 along with representatives from the research, development, and technology (RD&T) programs of two other state departments of transportation (DOT): Alabama ( ...
  • Synthesis on Documenting and Tracking Research Implementation Research Project Capsule
    Synthesis on Documenting and Tracking Research Implementation [Research Project Capsule]
    Sadek, Husam ;
    Rupnow, Tyson
    2019-03-03 | PDF
    The RAC Region II has initiated a collaborative research program consortium through the Transportation Pooled Fund (TPF) Program called the Southeast Transportation Consortium (STC), which is intended to encourage coordination among member states and provide resources and management of collaborative studies. The consortium intends to address high p ...
  • Rethinking Streets For Bikes An EvidenceBased Guidebook
    Rethinking Streets For Bikes: An Evidence-Based Guidebook
    Schlossberg, Marc ;
    Rowell, John
    2019-03-01 | PDF
    This project is a follow up to a successful previous NITC project and subsequent nationally distributed book, called “Rethinking Streets: An Evidence-Based Guide to 25 Street Transformations.” The success of the first book demonstrated a need for easy access to evidence-based transportation information that can be used by practitioners, community m ...
  • Estimation of System Performance and Technology Impacts to Support Future Year Planning
    Estimation of System Performance and Technology Impacts to Support Future Year Planning
    Hadi, Mohammed ;
    Xiao, Yan
    2019-03-01 | PDF
    Transportation agencies are increasingly interested in measuring and forecasting system performance and the impact of advanced technologies and strategies on existing and future year conditions. The goal of this project is to support these measurements and forecasting by taking advantage of state-of-the-art models, methods, and parameters and avail ...
  • Advanced Data Analytics and Mesoscopic Models for Special Event Impact Study at Maryland Casinos
    Advanced Data Analytics and Mesoscopic Models for Special Event Impact Study at Maryland Casinos
    Zhang, Lei ;
    Zhu, Zhengyuan
    2019-03-01 | PDF
    The Maryland Transportation Institute (MTI) at the University of Maryland (UMD) conducted an in-depth traffic impact analysis for three full-scale casinos recently opened in Maryland: Maryland Live! at the Arundel Mills Mall (opened in June 2012), Horseshoe in Downtown Baltimore (opened in August 2014), and MGM at the National Harbor (opened in Dec ...
  • Pile Deformation Stresses and Strains in Integral Abutment Bridges
    Pile Deformation Stresses and Strains in Integral Abutment Bridges
    Volkman, Christopher ;
    Hahin, Christopher
    2019-03-01 | PDF
    Integral abutment bridges have definite advantages, including less deck deflection than bridges with simply supported members, simpler construction, and lesser maintenance of the abutment and superstructure supports. This investigation examined the extent of strains induced by thermal expansion and contraction in driven piles and the reinforcing ba ...
  • New Mobility in the RightofWay
    New Mobility in the Right-of-Way
    Howell, Amanda ;
    Larco, Nico
    2019-03-01 | PDF
    This report categorizes and summarizes efforts that are already underway in cities across the world to rethink curb management, to outline the key takeaways from the one-day workshop that involved city staff from Portland, Seattle, and Vancouver, and to identify major research gaps. Key findings include: (1) The curb is a finite resource and it nee ...
  • Evaluating Equity Issues for Managed Lanes Methods for Analysis and Empirical Results
    Evaluating Equity Issues for Managed Lanes: Methods for Analysis and Empirical Results
    Cirillo, Cinzia ;
    Vicente, Javier Bas
    2019-03-01 | PDF
    Transportation planning decisions can have significant and diverse equity impacts (Litman, 2002). In particular, congestion and road pricing have raised equity concerns. Notably, the toll imposed on Managed Lanes on US highways affects drivers’ income. This is especially true for low-earning individuals, who devote a large portion of their availabl ...
  • BeltLine Bicyclist Facility Preferences and Effects on Increasing Trips
    BeltLine Bicyclist Facility Preferences and Effects on Increasing Trips
    Watkins, Kari E. ;
    Circella, Giovanni
    2019-03-01 | PDF
    The objectives of this study were to investigate perceptions of users and potential users of bicycle infrastructure and to investigate the impact of multi-use paths on bicycle trips. Data were collected through a before-and-after survey in 2017 and 2018 (wave 1 N=1,335, wave 2 N=713) of residents near the Eastside Atlanta BeltLine extension and the ...
  • Spatial Sustainability Assessment of Green Stormwater Infrastructure for Surface Transportation Planning Phase II
    Spatial Sustainability Assessment of Green Stormwater Infrastructure for Surface Transportation Planning, Phase II
    Zhang, Qiong ;
    Lu, Qing
    2019-03-01 | PDF
    Stormwater runoff can cause both flooding and the spread of pollutants, so it is important that it be managed effectively. This project investigates the watershed scale implementation of green infrastructure: technologies that reduce the imperviousness and promote the retention and treatment of the runoff at the source, rather than move the water t ...
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