A Study of the Impact of Ridesharing on Public Transit Ridership

Project Abstract

Since ridesharing services were first introduced to the market in 2010, its market share more than tripled. With such a rapid increase in market share, the relationship between the ridesharing industry and public transit started to gain attention from policy makers, transportation planners, and researchers. The current body of research on ridehailing services is limited by its novelty and the corresponding lack of publicly available ridehailing trip data. The conclusions are conflicting. The majority of existing research used stated preference data to identify the relationship between ridesharing and public transit by asking participants' choices. Our proposed research will explore the patterns of ridesharing trips, modeling the relationship between public transit and ridesharing, and propose regulation policies using objective datasets. With an extra-large-scale ridesharing trip data at an individual ridesharing trip level combining with real-time public transit information, the proposed research will be the first to explore the impacts of ridesharing on public transit without using stated preference surveys. We will also explore ways to integrate ridesharing with public transit by linking ridesharing with public transit.

Universities and Sponsoring Organizations Involved

Virginia Tech, U.S. Department of Transportation Office of the Secretary-Research

Principal Investigators

Hesham Rakha (VT) hrakha@vt.edu

Jianhe Du (VT) jdu@vtti.vt.edu

Funding Sources and Amounts

USDOT: $110,000 (Federal), Virginia Tech: $55,000 (Match)

Start Date

May 1, 2020

Expected Completion Date

April 30, 2021

Expected Research Outcomes

Our study will further the understanding of ridesharing industry in its impact on public transit. The results will provide suggestions for a better collaboration of ridesharing and public transit.

Expected Equity Impacts and Benefits of Implementation

The goal of this study is to help coordinate ridesharing and public transit in serving the general users and enhance the contribution of ridesharing in improving the mobility, access, and cost efficiency of the overall transportation system.

Subject Areas

Mobility, equity, efficiency, ridesharing