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