Investment Decision Framework and Programme Delivery Lifecycle
|Publication Date:||2 March 2019|
This standard is part of the P3M framework and relates to NR/L1/INI/P3M/100. It applies to all enhancement programmes that are funded outside of the Network Rail Strategic Business Plan.
NOTE 1: See the following link for definitions of projects, programmes, and portfolios in Network Rail.
This information is available externally on request from
This standard refers to 2 key process frameworks:
▪ Investment Decision Framework, and
▪ Programme Delivery Lifecycle, which replaces the previous GRIP for Programmes lifecycle for the development and delivery of infrastructure programmes.
The purpose of this standard is to describe the Investment Decision Framework (IDF) for the delivery of railway enhancements from long term planning through to the initiation, development, and delivery of the programme including the Programme Delivery Lifecycle (previously known as GRIP for Programmes).
Network Rail has developed this approach to managing programmes to minimise and mitigate the risks associated with delivering programmes that enhance the operational railway.
The IDF framework allows Network Rail to work across the industry with its funders and investors to make joint investment decisions for interventions that enhance the railway.
The framework provides the governance arrangements for undertaking three incremental investment decisions that can be made in a transparent way recognising the needs of funders and investors.
The framework describes an approach that relies on having the right information at the right time guided by the requirements of Treasury Green Book which describes the three stages of business case maturity:
▪ Strategic Strategic Outline Business Case (SOBC)
▪ Outline Outline Business Case (OBC)
▪ Final Final Business Case (FBC)
The framework positions investment in the context of railway outputs and service change delivered through timetable, rolling stock, infrastructure, franchise, and operational changes and meets the requirements for governance of Network Rail's P3M Policy NR/L1/INI/P3M/100.