scope:

Two major groups of train detection systems are addressed:

a) train absence detectors, such as track circuits;

b) train presence detectors, such as overlay rail circuits, treadles or wheel detectors.

This standard does not address vehicle configurations, axle numbers and spacing, or the EMI/EMC compatibility between the rolling stock and the train detection system. It is incumbent upon the application engineer to consider these issues when applying this standard. Reference shall be made to the Professional Head of Signalling to ensure that changes to the train detection systems do not invalidate rolling stock approvals

The business objective of this standard is to support the operation of a safe railway

The users of this standard are expected to be systems specifiers and designers and application engineers.

This document replaces E7055 A2, which is withdra

Purpose

This standard details the system functions and performance criteria for train detection systems, and describes their complete system lifecycle characteristics.

This standard applies the concepts of the safety signalling philosophy, as described in standard E7001, to train detection systems.