Signage project design process
Railway Signalling. Products and Systems

The preliminary design phase (EPR) process takes as its input an "operating program" supplied by the project owner. This program is an expression of requirements in terms of traffic capacity, types of traffic, automatic operating systems, etc.

The deliverable produced by the design engineering department at the EPR stage is a program known as the "signalling summary program", the purpose of which is to summarize the Owner's requirements in terms of track plan and signalling functionalities.