Ridesharing success depends on compatibility of carpoolers

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A new study has found that for ridesharing to be a success, it is very important to ensure that the would-be carpoolers are actually compatible with each other.

According to Bissan Ghaddar, professor of management engineering at University of Waterloo and author of the study, ensuring that would-be carpoolers are riding with people they actually like could potentially decrease car use by nearly 60 per cent. Ghaddar used social media analytics, algorithms and computer simulation to match would-be carpoolers with people driving to work.

While generally members for a rideshare are decided based on geographical location and time of schedule, Ghaddar says they 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”, he said.

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 as well as their 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 per cent in the Rome and by 40 per cent 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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