The same technology that lets riders pay with credit cards also tracks the beginning and end of every trip, location, and number of passengers.
Last year, a taxi driver sued the Taxi and Limousine Commission claiming his constitutional rights were violated by GPS tracking without probable cause or a warrant.
“In an administrative proceeding, [the use of GPS data] does not constitute a search within the meaning of the Fourth Amendment,” wrote Forrest.
The GPS technology helps reduce overcharging. In 2010 alone, more than 20,000 cab drivers overcharged customers.