The MBTA says it's shutting down its GPS-based arrival system along Washington Street tomorrow to comply with a federal mandate to change the frequencies used by the system.
The T says it expects to have the system up and running by Sept. 24. The FCC is forcing the T to change frequencies to keep the system from possibly interfering with public-safety services. The T adds:
In addition, Global Positioning System (GPS) technology will be unavailable to dispatchers in the MBTA's Bus Operations Control Center. As a result, bus dispatchers will not have the capability of making real time schedule adjustments. As the MBTA’s mobile radios are reprogrammed, they will begin to migrate over to the new frequency set and begin to populate the data system. Completion is slated for September 24th, but communications personnel are determined to complete the transition before that date.