The PtMS Mobile Unit is equipped with a GPS device that transmits GPS coordinates on a preset interval to the PtMS Mobile Database. Transmission frequency can be varied based on setup parameters in the Mobile Unit. GPS tracking records every 1,2 or 3 minutes are typical settings.

GPS tracking records the longitude and latitude of the vehicle, the vehicle id, and the time the tracking record was collected. If a connection with the PtMS Mobile website is not available at the time the record is created due to interruptions in the cell service, the record is stored on the Mobile Unit and is transmitted at the next available connection time.

Last Vehicle Location

Displaying the last vehicle location shows where the vehicle was located with its most recent GPS update (within the last 1-2 minutes depending on setting). This display can be either text (nearest intersection) or map. One, several or all vehicles can be selected for diplaying the last vehicle location(s).

Map Route

Map Route shows the continuous tracking of one vehicle over a selected period of time. This can assist the dispatcher with evaluation the on-time performance of a vehicle.