1. A train control system that interfaces with a cab signaling train control installation in a territory, comprising: a wayside controller that includes means for receiving cab-signaling speed codes for a plurality of cab-signaling blocks, means for receiving train location information from trains operating in said territory, means for converting said cab-signaling speed codes to corresponding movement authority limits, and means for transmitting said movement authority limits to said trains, and an on-board train control device that includes a location determination subsystem, means for receiving movement authority limit from said wayside controller, and means for generating a stopping profile to enforce said movement authority limit.