NR RT/E/S/14200 ISSUE 1 PDF

This specification applies to anyone given the responsibility by Network Rail for conducting overrun risk assessments of railway signals forming part of track layouts and fixed block signalling systems on Network Rail Controlled Infrastructure. They may be either Network Rail employees or appointed contractors/consultants acting on behalf of Network Rail.

The tools and techniques will be used for the assessment of safety risk: -

• During the design of new/altered layouts and fixed block signalling systems on Network Rail Controlled Infrastructure.

• On the operational use of those existing layouts and signalling.

Purpose

This document is a system specification and contains the tools and techniques to support the Company Standard RT/E/P/14201, Prevention, and Mitigation of Overrun - Risk Assessment of Signals. The tools and techniques provide a structured approach to signal overrun, (i.e. “Signal Passed at Danger” (SPAD)) risk assessment and should be used as part of the process shown in the standard.