Vehicle request management system having a central server

A vehicle request management system having a server (10) arranged to communicate with a plurality of vehicle requesting devices (12) and a plurality of vehicles (14), each being equipped with a device (200) having route planning and navigation functionality. Upon receipt of a vehicle request, the server (10) selects a suitable vehicle (14) and determines the route that the vehicle should travel to the pick-up location and then onto the drop-off location. The server (10) receives updates as to the position of the selected vehicle (14) as it completes the request, and uses data associated with the calculated route and the position of the selected vehicle (14) to provide enhanced functionality.