The NAO report sets out what it would expect to see in place to achieve benefits. It reported that the Department and TfL did not have a clear overarching benefits management strategy or plan for the Elizabeth line, but had started work on one since its fieldwork.56 Local economic growth and regeneration requires sustained effort and vision over a long period, as well as buy in from local stakeholders.57 The Department told us that TfL was developing a full strategy which would be published in the summer, setting out the actions to help realise those benefits.58 Crossrail Ltd told us that the Elizabeth line has a 120 year design life and so there is “plenty of time and opportunity for people to come back to the Elizabeth line”.59 Learning lessons