6 research outputs found

    Capturing the Impacts of Ride-Sourcing and HOVs [Project Title from Cover]

    No full text
    DTRT13-G-UTC58The potential of dynamic ridesharing as a Mobility-as-a-Service centerpiece in cities that are not dense enough for viable and effective public transit systems is being extensively studied by transportation supply researchers. With the era of autonomous vehicles quickly approaching, dynamic ridesharing services could have an important role in increasing vehicle occupancy, reducing vehicle miles traveled, and improving traffic conditions. However, the extent to which these potentials can be achieved depends on consumers\u2019 disposition to sharing rides. From a travel behavior perspective, two essential elements to the adoption of shared rides are individuals\u2019 acceptance of increased travel times associated with pick-up/drop-off of other passengers and their approval of strangers sharing the same vehicle. The current study develops the notion of willingness to share (WTS), which represents the money value attributed by an individual to traveling alone compared to riding with strangers, to investigate the adoption of shared rides. Using a multivariate integrated choice and latent variable approach, we examine current choices and future intentions regarding the use of shared rides and estimate individuals\u2019 WTS as well as their values of travel time for two distinct trip purposes. Results show that users are less sensitive to the presence of strangers when in a commute trip compared to a leisure-activity trip. We also observe that the travel time added to the trip to serve other passengers may be a greater barrier to the use of shared services compared to the presence of a stranger. However, the potential to use travel time productively may help overcome this barrier especially for high-income individuals

    0-6877 (Phase 1): Communications and Radar-Supported Transportation Operations and Planning (CAR-STOP) [Project Summary]

    No full text
    A recent NHTSA report indicates that more than 80% of all annual car crashes could be prevented by vehicular communications. To that end, the focus of this project was to develop a framework (conceptualizations, processes, procedures, and algorithms) to harness and mature wireless technology to improve transportation safety, with an emphasis on collision warning/collision avoidance (CW/CA) systems

    0-6877 (Phase 2): Communications and Radar-Supported Transportation Operations and Planning (CAR-STOP) [Project Summary]

    No full text
    A recent report from the National Highway Traffic Safety Administration indicates that more than 80% of all annual car crashes could be prevented by vehicular communications. To that end, the focus of this project was to develop a framework (conceptualizations, processes, procedures, and algorithms) to harness and mature sensing and communication technology to improve transportation safety, primarily focused on the development of an advanced driver assistance system (ADAS)
    corecore