优步是什么？如何搭乘优步？

Prices are calculated based on time and distance. They are subject to surcharges, tolls encountered during your trip, cancellation and wait times if applicable, and booking fees.

Many data points go into calculating an upfront price, including the estimated trip time, distance from origin to destination, time of day, route, and demand patterns. It also includes tolls, taxes, surcharges, and fees (with the exception of wait time fees).