scope:

This standard contains the mandatory requirements as an Infrastructure Manager for managing SPAD and signal reversion events on Network Rail Managed Infrastructure, or where a signal passed at danger on another party's infrastructure could lead to an unauthorised movement entering onto Network Rail's Managed Infrastructure.

Purpose

The purpose of this standard is, in accordance with the requirements applicable to an Infrastructure Manager in Railway Group Standard GO/RT3252, to provide a consistent and structured process for the immediate actions required in dealing with a Category A, B, C or D SPAD, gathering evidence following a SPAD incident and subsequent management of SPAD issues within Network Rail and in conjunction with Railway Undertakings. Signal reversions not resulting in Category B SPADs are also covered. This standard shall be supplemented by detailed functional procedures.