What Is a Rail Derail and How Does It Work?
A rail derail is a track protection device that deliberately guides a rolling vehicle off the rail if it tries to move through a protected zone. The name sounds alarming, but a controlled derailment at low speed is far less dangerous than an uncontrolled movement into a worksite or a occupied track section. This guide explains what a rail derail is, how it works, when it is used in Australian rail, and how it differs from other track protection devices.