'There is a huge amount still to do,' says project's incoming chief executive. : The opening of London‘s crisis-hit Crossrail has been delayed indefinitely while an additional £1.7bn may be needed to complete the project, transport bosses have said. The capital’s flagship east-west Elizabeth line underground rail link had been due to open this month but was pushed back to autumn 2019 after delays were announced over the summer. However Transport for London (TfL) officials have now scrapped that proposal, saying it had “become clear that more work is required than had been envisaged”.