This chapter sets out the methodology for developing the Strategic Service Model for sustainable transport infrastructure and the procedures for identifying and prioritising projects.

Key Themes: Prioritisation – Infrastructure – Goals

Gathering a robust evidence base from which to assess the state of existing infrastructure and to identify future priorities is key to ensuring effective use of PPPs. Most infrastructure assets last for many decades, so governments should start by defining what the infrastructure vision should be over the long term, e.g. the next 50 years. In deciding on which projects take priority, Cost Benefit Analysis is a well-accepted methodology to achieve a consistent and effective prioritisation. The difficult and contentious decisions that policy makers face in pursuing these new projects means that an emphasis on careful marketing, both internally within government and to the wider stakeholder community, is important.