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What Does Ridesharing Replace?

What Does Ridesharing Replace?

Full Title: What Does Ridesharing Replace?
Author(s): Benjamin Leard and Jianwei Xing
Publisher(s): Resources for the Future
Publication Date: February 5, 2020
Full Text: Download Resource
Description (excerpt):

Ridesharing services such as Uber and Lyft are an increasingly popular mode option for many travelers. Yet little is known about the effects of this mode on travel behavior and other social impacts, such as public transit use, traffic, and pollution. In this paper, we estimate the effects of the availability of ridesharing on travel mode choices made in a large sample of metropolitan areas. We do so by estimating a discrete choice model of household mode choice using a nationally representative dataset of travel behavior and simulating household mode choices in a setting where ridesharing were not available. We find that a majority of travelers would have used a car, taxi, or walked had ridesharing not been available. In some large cities, however, ridesharing displaces a significant portion of public transit trips. We find that the availability of ridesharing has led to modest increases in total vehicle miles traveled and greenhouse gas emissions. Moreover, the impacts of ridesharing could be heterogeneous across cities, which are related to each city’s drivability and public transit use.

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