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Autonomous Vehicles

rosaP Repository & Open Science Access Portal

By leveraging advanced technologies, Autonomous Vehicles (AVs) hold the potential to increase transportation safety and efficiency. This collection showcases USDOT-funded research and data concerning AVs. Bookmark this collection: https://rosap.ntl.bts.gov/collection_avs OR https://doi.org/10.21949/1x81-qs91.

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Showing 521 - 540 of 880 results
  • Infrastructure Readiness for Electric Connected and Automated VehiclesPolicies Planning and Pilot Testing on Infrastructure Readiness for Electrical Connected Automated and Ridesharing Vehicles
    Infrastructure Readiness for Electric, Connected and Automated Vehicles-Policies, Planning, and Pilot Testing on Infrastructure Readiness for Electrical, Connected, Automated, and Ridesharing Vehicles
    Jafari, Mohsen A ;
    Jin, Peter J.
    2020-09-01 | PDF
    Connected and Autonomous Vehicles (CAVs) have gained huge expectations in improving safety, efficiency, and environmental friendliness for transportation. However, they are still at a relatively early stage of development, and little attention has been paid to the readiness of roadway infrastructure. The focus of this report will be on infrastructu ...
  • Emerging Approaches to Autonomous Vehicles in Transportation Policy and Planning
    Emerging Approaches to Autonomous Vehicles in Transportation Policy and Planning
    Miller, Thaddeus ;
    Pendyala, Ram M.
    2020-09-01 | PDF
    Autonomous vehicles (AVs) are rapidly emerging in United States cities, leaving urban and regional planning institutions unsure how to plan and develop policies. This paper analyzes how regional transportation plans (RTPs) developed by metropolitan planning organizations (MPOs) are approaching the risks and opportunities presented by AVs. Among 52 ...
  • Dynamic Speed Harmonization in Connected Urban Street Networks Improving Mobility
    Dynamic Speed Harmonization in Connected Urban Street Networks: Improving Mobility
    Hajbabaie, Ali ;
    Tajalli, Mehrdad
    2020-09-01 | PDF
    The goal of this project is to improve mobility in urban street networks by developing a methodology for dynamic speed harmonization suitable for connected urban street networks. The methodology aims at finding optimal advisory speeds on each transportation link that will be transferred to connected and autonomous vehicles, with the objective of re ...
  • Trajectory Optimization of Connected and Autonomous Vehicles CAVs at Signalized Intersections
    Trajectory Optimization of Connected and Autonomous Vehicles (CAVs) at Signalized Intersections
    Fan, Wei (David) ;
    Liu, Pengfei
    2020-09-01 | PDF
    This research will develop guidelines and recommendations for estimating and predicting intersection efficiency in the presence of connected and autonomous vehicles (CAVs) and therefore will lead to a better understanding of how CAVs will improve mobility at signalized intersections. To better understand the impact of CAVs on the operation of signa ...
  • Connected Autonomous Vehicles Safety During Merging and Lane Change and Impact on Traffic Flow
    Connected Autonomous Vehicles: Safety During Merging and Lane Change and Impact on Traffic Flow
    Iannou, Petros ;
    Monteiro, Fernando V
    2020-09-01 | PDF
    In this report we address the problem of cooperative lane change maneuvers where vehicles communicate with each other and negotiate the creation of safe spacings in order to merge without taking any safety risks. The proposed approach requires that the merging vehicle negotiates the creation of a safety gap in the destination lane and till the lane ...
  • Development of VehicletoInfrastructure Applications Program Sixth Annual Report
    Development of Vehicle-to-Infrastructure Applications Program: Sixth Annual Report
    Shulman, Michael ;
    Geisler, Scott
    2020-08-31 | PDF
    This report documents the work completed by the Crash Avoidance Metrics Partners LLC (CAMP) Vehicle to Infrastructure (V2I) Consortia during the sixth year of the “Development of Vehicle-to-Infrastructure Applications (V2I) Program.” Participating companies in the V2I Consortia (V2I, V2I-2 and V2I-3) during this period were Ford, General Motors, Hy ...
  • Probability of Detection of Electric Vehicles with Added Warning Sounds
    Probability of Detection of Electric Vehicles with Added Warning Sounds
    Roan, Michael J ;
    Neurauter, Luke
    2020-08-05 | PDF
    Detection performance as a function of distance was measured for 16 subjects who pressed a button upon aurally detecting the approach of an electric vehicle. The vehicle was equipped with loudspeakers that broadcast one of four additive warning sounds. Other test conditions included two vehicle approach speeds [10 and 20 km/h (kph)] and two backgro ...
  • Transportation Equity for RITI Communities in Autonomous and Connected Vehicle Environment Opportunities and Barriers
    Transportation Equity for RITI Communities in Autonomous and Connected Vehicle Environment: Opportunities and Barriers
    Sorour, Sameh ;
    Abdel-Rahim, Ahmed
    2020-08-01 | PDF
    This report summarizes the results of a study conducted to document the safety and mobility needs of Rural, Isolated, Tribal, or Indigenous (RITI) communities and to identify autonomous and connected vehicle technology that have the potential of addressing these needs. A review of the administrative structure for the five Native American Tribes in ...
  • Statistical Inference Without Excess Data Using Only Stochastic Gradients Volume 1
    Statistical Inference Without Excess Data Using Only Stochastic Gradients: Volume 1
    Li, Tianyang ;
    Liu, Liu
    2020-08-01 | PDF
    We present a novel statistical inference framework for convex empirical risk minimization, using approximate stochastic Newton steps. The proposed algorithm is based on the notion of finite differences and allows the approximation of a Hessian-vector product from first-order information. In theory, our method efficiently computes the statistical er ...
  • Investigating Autonomous Vehicle Impacts on Individual ActivityTravel Behavior
    Investigating Autonomous Vehicle Impacts on Individual Activity-Travel Behavior
    Dannemiller, Katherine A. ;
    Mondal, Aupal
    2020-08-01 | PDF
    This paper develops an analytic system to investigate the effects of AV availability on multiple dimensions of activity-travel behavior at once, based on a direct survey-based modeling approach. The model uses individual socio-demographics, built environment variables, as well as psycho-social variables (in the form of latent psychological construc ...
  • Optimal Placement of ReservationBased Intersections in Urban Networks
    Optimal Placement of Reservation-Based Intersections in Urban Networks
    Patel, Rahul ;
    Venkatraman, Prashanth
    2020-08-01 | PDF
    Reservation-based traffic control is a revolutionary intersection management system which involves the communication of autonomous vehicles and an intersection to request space-time trajectories through the intersection. Although previous studies have found congestion and throughput benefits of reservation-based control that surpass signalized cont ...
  • A General Equilibrium Model for Integrated CAV Ridesourcing and Transit Services for the Morning Commute
    A General Equilibrium Model for Integrated CAV Ridesourcing and Transit Services for the Morning Commute
    Fan, Rong ;
    MacCabe, Dan
    2020-08-01 | PDF
    Commuting congestion increases alongside the prosperity of urban cities. With the rapid development of ride sourcing services and the advances of the connected and automated vehicles (CAV), researchers are seeking innovative approaches to alleviate commuting congestion by integrating CAV-based ride sourcing and transit services. We propose a genera ...
  • AllWeather Sub50cm RadarInertial Positioning
    All-Weather Sub-50-cm Radar-Inertial Positioning
    Narula, Lakshay ;
    Iannucci, Peter A.
    2020-08-01 | PDF
    Deployment of automated ground vehicles beyond the confines of sunny and dry climes will require sub-lane level positioning techniques based on radio waves rather than near-visible-light radiation. Like human sight, lidar and cameras perform poorly in low-visibility conditions. This paper develops and demonstrates a novel technique for robust sub-5 ...
  • Training to Improve Drivers Behavior When Partial Driving Automation Fails
    Training to Improve Drivers’ Behavior When Partial Driving Automation Fails
    Roberts, Shannon C ;
    Ebadi, Yalda
    2020-08-01 | PDF
    With the advent of automated vehicle systems, the role of drivers has changed to a more supervisory role. However, it is known that all vehicles with Level 2 (L2) systems have a very specific operational design domain (ODD) and can only function on limited conditions. Hence, it is important for drivers to perceive the situations properly and regain ...
  • Statistical Inference Without Excess Data Using Only Stochastic Gradients Volume 2
    Statistical Inference Without Excess Data Using Only Stochastic Gradients: Volume 2
    Li, Tianyang ;
    Liu, Liu
    2020-08-01 | PDF
    We present a novel statistical inference framework for convex empirical risk minimization, using approximate stochastic Newton steps. The proposed algorithm is based on the notion of finite differences and allows the approximation of a Hessian-vector product from first-order information. In theory, our method efficiently computes the statistical er ...
  • Labeling Roads with Different Types of Automated Driving Functional Requirements using Machine Learning
    Labeling Roads with Different Types of Automated Driving Functional Requirements using Machine Learning
    Zhao, Ding ;
    Xu, Mengdi
    2020-07-07 | PDF
    Automated vehicles (AVs) should be deployed gradually and geometrically selectively to ensure safety. Frequent collisions of AVs in certain driving scenarios, such as in dark streets or crowded areas, have posed wide concerns of AV safety. People want to know what kinds of driving circumstances or areas are easy for AVs and what are relatively hard ...
  • Transit Bus Automation Market Assessment
    Transit Bus Automation Market Assessment
    Cregger, Joshua ;
    Machek, Elizabeth
    2020-07-01 | PDF
    FTA has conducted research on conceptual ideas, prototypes, and commercially available products related to automated vehicle technologies for transit bus operations. The emerging automated transit bus market has received enthusiastic media coverage, but stakeholders may not clearly understand the difference between conceptual ideas, prototype syste ...
    Supporting Files
  • The Impacts of Emerging Mobility Options and Vehicle Technologies on Travel Behavior
    The Impacts of Emerging Mobility Options and Vehicle Technologies on Travel Behavior
    Jin, Xia ;
    Rahimi, Alireza
    2020-07-01 | PDF
    This report presents a study that investigated potential travel behavior changes in light of automated, connected, electric, and shared-use vehicle (ACES) technologies. Three main aspects of choice behavior were investigated: AV adoption and willingness to pay (WTP), shared mobility adoption, and mode choice. Particularly, this study focuses on exp ...
  • Assessment of Capacity Changes Due to Automated Vehicles on Interstate Corridors
    Assessment of Capacity Changes Due to Automated Vehicles on Interstate Corridors
    Heaslip, Kevin ;
    Goodall, Noah J.
    2020-07-01 | PDF
    This study was designed to assess capacity changes due to the introduction of connected vehicles (CVs) and automated vehicles (AVs) on Virginia freeway corridors. Overall, three vehicle types, including legacy vehicles (LVs); vehicles equipped with adaptive cruise control (ACC) (AVs); and vehicles equipped with cooperative adaptive cruise control ( ...
  • LongTerm Impacts of Shared Connected Automated and EMobility in New York State Exploring Hubs of Mobility and Energy Innovation
    Long-Term Impacts of Shared, Connected, Automated, and E-Mobility in New York State: Exploring Hubs of Mobility and Energy Innovation
    Kamga, Camille ;
    Mudigonda, Sandeep
    2020-07-01 | PDF
    Disruptive changes in mobility services are emerging across the nation and in New York State that have the potential to further enable private car-optional lifestyles and expanded, more flexible and affordable mobility choices. By convening stakeholder engagement roundtables of advanced transportation experts, then utilizing available data for visu ...
521 - 540 / 880
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