United States Department of Transportation
i
A General Equilibrium Model for Integrated CAV Ridesourcing and Transit Services for the Morning Commute
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2020-08-01
[PDF-1.27 MB]
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Abstract:Commuting congestion increases along side the prosperity of urban cities. With the rapid development of ridesourcing services and the advances of the connected and automated vehicles (CAV), researchers are seeking innovative approaches to alleviate commuting congestion by integrating CAV-based ridesourcing and transit services. We propose a general equilibrium model for an integrated, multimodal CAV ridesourcing and transit system. Our model captures the economic behaviors and interactions of the major players (i.e.. the ridesourcing company and customers) in the commuting problem by optimizing the profit of the ridesourcing company and the utility of customers, as well as considering the network congestion. Results show that the demand for shared rides and transit are affected by the relative costs of different types of travel modes of the integrated system. While transit uses generally reduces congestion, ridesharing alone may still cause higher congestion compared with solo driving because of the deadhead miles. Our model can systematically investigate the mode choices of customers and measure the resulting congestion effect in a multimodal network, which helps bring valuable insights to transportation planers, transit agencies, and ridesourcing companies.
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