ACSES

ACSES is an expansion overlay for the cab signaling system. Current installations include AMTRAK's North East Corridor which runs from Boston, MA to Washington, D.C.
ACSES is a modular on-board and wayside PTC system that delivers incremental safety functions while allowing speeds up to 150 mph.
ACSES uses passive transponders to enforce permanent civil speed restrictions. Features include:
- Positive train stops at interlocking signals
- Positive train stop release via radio
- Temporary slow orders through a data radio network
Key Safety Benefits include:
- Prevent train-to-train collisions (PTS)
- Protection from overspeed incidents
- Protects work crews with Temporary Speed