5 This report is not intended to apportion blame for what has happened to the Crossrail programme. Our aim is to set out why and how the programme ran into difficulty, and what Crossrail Ltd needs to do to manage the remaining risks to the programme and deliver the promised benefits to passengers and the economy.
6 We have focused primarily on the period from 2015 to March 2019, as problems started to emerge on the programme from 2015. We have also looked at some of the decisions Crossrail Ltd made before this point. This report is based on review and analysis of documents produced by Crossrail Ltd and sponsors, including reports on the programme's progress, and interviews with key senior figures involved in the delivery and oversight of the programme. Crossrail Ltd now has a new management team, Chair and board members. We have not audited the work of the new management team.