Mobility

Study finds compatibility key to ridesharing success

Posted on July 6, 2017

Ensuring that would-be carpoolers are riding with people they like could potentially decrease car usage by nearly 60%, research from a professor at Canada’s University of Waterloo has found.

The research, recently published in Transportation Research Part C, used social media analytics, algorithms, and computer simulation to match would-be carpoolers with people driving to work.

“Usually carpooling is about just matching people depending on geographical location and time of schedule,” said Bissan Ghaddar, professor of management engineering at Waterloo and author of the study. “We wanted to include the social aspect into the equation, because it’s always awkward when there is silence in the car, especially if it’s a long commute. We believed that we really needed to look at the social aspect, and our initial data analysis agreed with us.”

In compiling the study, Ghaddar worked with colleagues at IBM and two universities in Italy to analyze the Twitter feeds of potential carpoolers, looking for insights into their personal interests.

They then examined the users’ social circles to see if they followed like-minded friends or sought out people with different views and fed that information into a computer algorithm designed to match carpoolers based on their geo-tagged location, time preferences, and personalities.

As a final step, they simulated the impact of their matchmaking using real-world data from Rome and San Francisco. They found that if carpoolers are compatible, people’s satisfaction significantly increased and car use dropped by 57% in Rome and by 40% in San Francisco.

“This could be a system that could put a dent in gridlock, reduce pollution and make commuting to work more enjoyable,” said Ghaddar. “As a carpooler myself, I can’t overestimate the importance of compatibility.”

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