Method and apparatus for uniform time warning of railroad trains

摘要

A system for controlling a train's approach on a right-of-way to a grade crossing such that a uniform warning time is ensured comprising: a communication based train control scheme including a computer situated on the train; means for detecting the presence of the train at a first control point on the right-of-way and for determining the train's speed thereat; means for activating the gate at the grade crossing responsive to the train being at a second control point on the right-of-way wherein the second control point is based on the determined speed such that a uniform warning time is provided.