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University Transportation Centers

rosaP Repository & Open Science Access Portal

USDOT’s University Transportation Centers (UTC) Program, launched in 1988, awards and administers grants to consortia of colleges and universities across the United States. Each UTC forms a unique center of transportation excellence on a specific research topic. The UTC Collection brings together the research outputs of these consortia. To learn more about the UTC program , visit https://www.transportation.gov/content/university-transportation-centers. Bookmark this collection: https://rosap.ntl.bts.gov/collection_utcp or https://doi.org/10.21949/1530855.

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Showing 2081 - 2100 of 9615 results
  • Twilytics A Social Perception Analysis of Public Transit Systems during the COVID19 Pandemic
    Twilytics: A Social Perception Analysis of Public Transit Systems during the COVID-19 Pandemic
    Etu, Egbe-Etu ;
    Tenebe, Imokhai
    2022-10-01 | PDF
    In the United States, public transit ridership in 2020 declined by 79% compared to 2019 levels. With lockdowns implemented during the early days of the pandemic, direct human-to-human interactions migrated to virtual platforms (e.g., Facebook, Twitter, and Reddit). Social media platforms have aided researchers in answering numerous questions about ...
  • Accessing Opportunities for Household Provisioning PostCOVID19
    Accessing Opportunities for Household Provisioning Post-COVID-19
    Clifton, Kelly J. ;
    Carder, Paula
    2022-10-01 | PDF
    In this project, we used a mixed-methods study to collect critical information to evaluate the extent to which people modified their shopping behavior, either by choice or necessity, to meet their provisioning needs during the COVID-19 crisis and the following recovery. First, four waves of a cross-sectional survey were administered online to a rep ...
  • Understanding COVID19s Impact on Local Transportation Revenue a MidCrisis View from Experts Research Brief
    Understanding COVID-19’s Impact on Local Transportation Revenue – a Mid-Crisis View from Experts [Research Brief]
    Agrawal, Asha Weinstein ;
    Alexander, Serena
    2022-10-01 | PDF
    When COVID-19 swept into the United States in early 2020, it upended two patterns of behavior critical to transportation funding: how people traveled and where economic activity occurred. This study explored how, one year into the pandemic, experts in California believed that the COVID-19 pandemic was impacting local transportation budgets.
  • Identifying and Mitigating Congestion Onset Technology Transfer Final Report
    Identifying and Mitigating Congestion Onset [Technology Transfer Final Report]
    List, George ;
    Hadi, Mohammed
    2022-10-01 | PDF
    This project aimed to help transport agencies use “big data” to help mitigate congestion and manage system performance, for both freeways and arterials. Two investigatory objectives were pursued. First, we created and trained algorithms to spot the onset of incidents and recurring congestion, so that system managers could be more responsive. Our hy ...
  • Electric Vehicle LithiumIon Battery Recycled Content Standards for the US Targets Costs and Environmental Impacts
    Electric Vehicle Lithium-Ion Battery Recycled Content Standards for the US – Targets, Costs, and Environmental Impacts
    Dunn, Jessica ;
    Kendall, Alissa
    2022-10-01 | PDF
    Lithium-ion battery recycling can decrease life cycle environmental impacts of electric vehicles (EVs) and assist in securing domestic supply chains. However, the US, the third largest market for EVs, has no policies for recycling of batteries at their end-of-life. The European Union has proposed recycled content standards (RCSs) to help drive a ci ...
  • Assessing and Mitigating Transportation Infrastructure Vulnerability to Coastal Storm Events With the Convergence of Advanced Spatial Analysis Infrastructure Modeling and Storm Surge Simulations
    Assessing and Mitigating Transportation Infrastructure Vulnerability to Coastal Storm Events With the Convergence of Advanced Spatial Analysis, Infrastructure Modeling, and Storm Surge Simulations
    Gong, Jie ;
    Wang, Yifan
    2022-10-01 | PDF
    In this project, the research team studied the convergence of remote sensing, digital twin, web technologies, and flood simulation for creating an advanced flood preparedness system. The project used Manville, a frequently flooded township in New Jersey, as an exemplar case. The team created a calibrated hydrodynamic model for the entire township a ...
  • Understanding the Safety and Usability of Personal Vehicles for Nondriving Individuals With Disabilities and Their FamiliesCare Providers
    Understanding the Safety and Usability of Personal Vehicles for Non-driving Individuals With Disabilities and Their Families/Care Providers
    Kumar, Anil R ;
    Bowman, Hannah
    2022-10-01 | PDF
    The connections between shared personal vehicles of individuals with disabilities (IWDs) and their household family members play an important role in the mobility, overall health, and well-being of all involved actors, yet this topic remains mostly overlooked within publicly available research. Families that include a non-driving IWD are more likel ...
  • Traffic Signal Plans to Decongest Street Grids Policy Brief
    Traffic Signal Plans to Decongest Street Grids [Policy Brief]
    Cassidy, Michael J. ;
    Daganzo, Carlos F.
    2022-10-01 | PDF
    The strategy retains excellent synchronization on these paths when adapting to residual queues. The synchronization is altered in these cases simply by replacing vehicle trip times with the trip times of backward waves that propagate through queues, as per kinematic wave theory. This has the desirable effect of preventing favored movements from bei ...
  • Large Eddy Simulations of Wind Shear From Passing Vehicles Under a Freeway Overpass
    Large Eddy Simulations of Wind Shear From Passing Vehicles Under a Freeway Overpass
    Rahai, Hamid R. ;
    Begum, Assma
    2022-10-01 | PDF
    California is moving toward a 100% clean energy future, and expanded wind energy will be a major component of the state’s future energy portfolio. Innovations in wind energy resources will move California closer to achieving its goal. To gain a better understanding of transient pressure and the wind shear generated at the bridge poles from passing ...
  • Smart Mobile Platform for Model Updating and Life Cycle Assessment of Bridges
    Smart Mobile Platform for Model Updating and Life Cycle Assessment of Bridges
    Pakzad, Shamim N ;
    Takac, Martin
    2022-10-01 | PDF
    Mobile sensing is an alternative paradigm that offers numerous advantages compared to the conventional stationary sensor networks. Mobile sensors have low setup costs, collect spatial information efficiently, and require no dedicated sensors to any particular structure. Most importantly, they can capture comprehensive spatial information using few ...
  • Improving Access and Equity via Shared Automated Mobility in US Public Transportation Systems
    Improving Access and Equity via Shared Automated Mobility in U.S. Public Transportation Systems
    Samaras, Costa
    2022-09-30 | PDF
    As automated transportation progresses, public transit agencies may address the equitable implications of integrating autonomous vehicles and shuttles into current transit systems. Capital and operating expenses for automated mobility modes handled by public transportation agencies are unknown at this point given the limited number of pilots and de ...
  • Improving Access and Equity via Shared Automated Mobility in U.S. Public Transportation Systems [Supporting Dataset]
    Whitmore, Allante
    2022-09-30 | BIN
    As automated transportation progresses, public transit agencies may address the equitable implications of integrating autonomous vehicles and shuttles into current transit systems. Capital and operating expenses for automated mobility modes handled by public transportation agencies are unknown at this point given the limited number of pilots and de ...
    Dataset
  • Interaction of Mechanical Systems with Structurally Significant Fire Events and Tunnel Fire Mitigation Optimization
    Interaction of Mechanical Systems with Structurally Significant Fire Events and Tunnel Fire Mitigation Optimization
    Zhu, Zheda ;
    Quiel, Spencer
    2022-09-30 | PDF
    The first section of this report numerically investigates the thermal impact of vehicle fire hazards on exposed electrical conduits in roadway tunnels. By modeling the fire and subsequent heat transfer to the conduit, the analysis results provide performance-based design guidance for allowable temperature increases before the conduit and its conten ...
  • Rotorcraft Landing Sites Identification - Scaling and Generalization of the AI Model [Supporting Dataset]
    Rasool, Ghulam ;
    Bouaynaya, Nidhal
    2022-09-16 | BIN
    The updated information about the location and type of landing sites is essential for the Federal Aviation Administration (FAA) and the Department of Transportation (DOT). However, the acquisition, verification, and regular updating of information about landing sites are not straightforward. The lack of current and correct information on helicopter ...
    Dataset
  • Bridge Deck Surface Profile Evaluation for Rapid Screening and Deterioration Monitoring [Supporting Dataset]
    Trias-Blanco, Adriana C
    ORCID ICON IMG
    2022-09-15 | BIN
    The assessment of bridge deck condition demands the development of rapid and efficient diagnosis, prognosis, and repair techniques to safely and cost-effectively extend the life-cycle of our transportation infrastructure. Without the ability to identify and characterize deficiencies at their early stages, prognosis and various repair strategies sim ...
    Dataset
  • Equitable Dynamic Pricing of Express Lanes
    Equitable Dynamic Pricing of Express Lanes
    Pandey, Venktesh ;
    Alamri, Bader G
    2022-09-13 | PDF
    Express lanes mitigate traffic congestion by providing a time-reliable alternative and exploiting travelers' willingness to pay to generate revenue for infrastructure projects. Over the last decade, equity and fairness issues for express lanes have been considered; however, there is a lack of guidance on the design of equitable discounts. In this a ...
  • Risk Assessment of Hazardous Material Transportation for Small and Tribal Communities
    Risk Assessment of Hazardous Material Transportation for Small and Tribal Communities
    Khattak, Aemal J. ;
    Redepenning, Harrison
    2022-09-12 | PDF
    Small communities (population <5,000) and Native American communities in Nebraska often lack the means to adequately deal with highway-based crashes involving hazardous materials (HazMat). This research focused on assessing the vulnerability of small and tribal communities in Nebraska to the impacts of highway HazMat crashes. This was achieved by estimating the expected number and type of HazMat crashes per population in each community. Reported HazMat crashes were statistically analyzed to determine if small and Native American communities experienced a higher crash rate per population and per HazMat VMT than large and other small communities respectively. Mean HazMat crash rate per population statistically significantly differed between small and large communities while the mean crash rate comparison between the Native American and other small communities was not statistically significant. For the mean HazMat crash rate per HazMat VMT, neither comparison was found statistically significant. In expected HazMat crashes, actual HazMat crashes per population, and actual HazMat crashes per HazMat VMT, small communities had higher mean values than their larger counterparts. Communities on Native American reservation land experienced a higher expected and lower actual HazMat crash rate per population than other small communities. For actual HazMat crashes per VMT, Native American communities had a higher rate than other small communities.
  • The Future of Parking: Safety Benefits and Challenges [Supporting Dataset]
    Gurbuz, Okan ;
    Aldrete, Rafael M.
    2022-09-12 | BIN
    Although parking facilities are one of the main components of transportation infrastructure, little is known about the incidence of parking-related crashes, injuries, and fatalities. Slower speeds in parking facilities give people a false sense of security. However, both drivers and pedestrians must be cautious in parking facilities. n. This situat ...
    Dataset
  • Autonomous Delivery Vehicle as a Disruptive Technology: How To Shape the Future With a Focus on Safety? [Supporting Dataset]
    Das, Subasish ;
    Tsapakis, Ioannis
    2022-09-10 | BIN
    The National Highway Traffic Safety Administration recently granted permission to deploy low-speed autonomous delivery vehicles (ADVs) on roadways. Although the mobility of ADVs is limited to low-speed roads and these vehicles are occupant less, frequent stops and mobility among residential neighborhoods cause safety-related concerns. There is cons ...
    Dataset
  • Repairable Precast Bridge Bents for Seismic Events
    Repairable Precast Bridge Bents for Seismic Events
    Hart, Kallan ;
    Tazarv, Mostafa
    2022-09-06 | PDF
    Bridges designed with current seismic codes exhibit large displacement capacities, and the bridge total collapse is prevented. However, damage of ductile members is allowed at this performance level. In reinforced concrete bridges excited by ground shaking, columns are the target ductile members in which concrete cover, core, and reinforcement may ...
2081 - 2100 / 9615
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