Early Stage Specification Process

A diagram showing a continuous path going round three loops. In the first loop are the words Define, Develop, Assess, Draft, Model, Test. This then leads to the second loop which has Reassess, Adapt, Develop, Assess, Draft, Model, Test. Then to the third loop which is the same as the second. The three loops are labelled Iteration 1, Iteration 2, Iteration 3

The Early Stage Specification Process (ESSP) gives detailed guidance on the steps to take to shape ideas into viable proposals. This will help define what a project needs to achieve, explore different service options, and assess how well the existing rail network can support you.

ESSP ensures that early decisions are well-informed and aligned with strategic goals – supporting the creation of a strong business case.

Click on the steps below to jump straight to each step:

Go to Step 1: Requirements and Service Outputs