Abstract: A method for monitoring on route transportations includes obtaining, from a first passenger terminal, a transportation service request for a transportation service including a pickup location and a drop-off location; before selecting a vehicle to provide the transportation service: obtaining status information of a plurality of vehicles from a plurality of driver terminals within a first predetermined region around the pickup location, wherein each of the plurality of vehicles corresponds to a driver terminal of the plurality of driver terminals; determining from the plurality of vehicles, at least one candidate vehicle available to provide the transportation service based on the status information of the plurality of vehicles; and sending a real-time position of each of the at least one candidate vehicle to the first passenger terminal to display a tag of the at least one candidate vehicle in an electronic map on the first passenger terminal.