Mobile ride-hailing first appeared nearly 10 years ago, when what was then known as UberCab launched and quickly became a hit among San Francisco tech workers needing a lift. Without raising a hand or saying a word, they could summon a ride by just tapping their phones. Also known as transportation network companies, providers such as Uber and Lyft have gone through rapid growth over the intervening decade and changed the way that people move around cities.

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