The opening of the Elizabeth line on 24 May 2022 was a significant achievement for everyone involved in the delivery of Crossrail, including the Joint Sponsor team who oversaw the governance arrangements that supported the project through development, construction, commissioning and the successful transition into operations.
The Joint Sponsor team was established with staff from both sponsor organisations, the Department for Transport (DfT) and Transport for London (TfL), and was responsible for interfacing with the Crossrail project on behalf of the sponsors.
In this paper, as current members of the sponsor teams in DfT and TfL, we reflect on the changes made to the governance arrangements as the project progressed through recovery, completing the railway and project close, and describe the impacts of these changes.
We have identified lessons that we feel are beneficial for other major government-funded infrastructure projects, including High Speed 2, East West Rail, the Lower Thames Crossing and future investments including the Bakerloo line extension and Crossrail 2.