TRADE UNIONISTS today called for an inquiry after it was announced that the opening of Crossrail will be delayed yet again.

Transport union TSSA general secretary Manuel Cortes criticised the “badly delayed” rail project, which Transport for London (TfL) has admitted may not open until December 2021.

TfL commissioner Mike Brown said that more time is needed to test trains on the new line — which is to be called the Elizabeth Line — before it can be opened to the public.