The invention provides a method for temporary speed limitation in
urban rail transit. The method comprises the following steps: after an ATS (
Automatic Train Supervision)
workstation sets up the temporary speed limitation, a DSU (
Data Service Unit) carries out legality check on the temporary speed limitation as well as carries out
correctness check on the temporary speed limitation together with the ATS
workstation; after the
correctness check is passed, the DSU sends out the temporary speed limitation to a ground ATP (
Automatic Train Protection)
system; the ground ATP
system respectively sends the temporary speed limitation to a vehicle-mounted ATP
system and a computer
interlocking system, so that the vehicle-mounted ATP system executes CBTC (
Communications Based Train Control) temporary speed limitation, and the computer
interlocking system executes point type temporary speed limitation. The invention also provides a system for the temporary speed limitation in the
urban rail transit. The system comprises the ATS
workstation, the DSU, the ground ATP system, the vehicle-mounted ATP system and the computer
interlocking system. According to the method and the system, the setup, the management, the issuing and the execution of the temporary speed limitation are realized by using typical
signal equipment, and the CBTC temporary speed limitation and the point type temporary speed limitation are integrated.