A method includes receiving over a first dedicated traffic channel, DTCH parameters for a second DTCH from a first information providing device; broadcasting a connect command to a second information providing device to establish the second DTCH between the computing device and the second information providing device in a single communication handshake, the connect command comprising the DTCH parameters; receiving over the second DTCH, an electronic traffic signal associated with an area of a vehicular passageway associated with the second information providing device; determining from the electronic traffic signal, a predetermined value of a vehicular passageway parameter associated with the area; comparing the predetermined value with a current vehicle value of the vehicular passageway parameter; generating a command to display an indication in a vehicle as a result of the comparing; and transmitting the command to a display in the vehicle.