The Department of For - Hire Vehicles ( DFHV ) in Washington DC has launched technology that enables the real - time tracking of taxis and limousines . The service can be built into apps and offers visual representations of drivers , as well as specific car identity numbers . In an interview with Smart Cities Dive earlier this year, TransitScreen CEO and co-founder Matt Caywood said such data on an API helps save travelers time and makes their journeys more efficient, as they know which options are available and how their travel times will be affected. TransitScreen and Redmon Group are among the early adopters of the plug - in that 's designed to help DFHV services compete with Uber and Google .
The Department of For - Hire Vehicles ( DFHV ) in Washington DC has launched technology that enables the real - time tracking of taxis and limousines . The service can be built into apps and offers visual representations of drivers , as well as specific car identity numbers . TransitScreen and Redmon Group are among the early adopters of the plug - in that 's designed to help DFHV services compete with Uber and Google .