The commissioner of Transport for London (TfL) will face questions about delays to Crossrail after a report suggested he should resign.

The London Assembly’s transport committee will tomorrow question TfL commissioner Mike Brown after a report said he “must reflect on whether he is fit to continue to fulfil his role”.

Committee chairman Caroline Pidgeon said the committee is “looking forward” to hearing from Mr Brown “especially in light on the report”.

Ms Pidgeon said: “The evidence made it clear that the governance structure was not fit for purpose and there was a clear lack of transparency on how the project was managed.

“We’re expecting to hear this week or next about the new opening date.

“However, what is more important to know is whether the Commissioner and those who form the senior management team at Crossrail and TfL have taken on board our recommendations to avoid a repeat of past errors that could lead to an even further delay.”

Crossrail – also known as the Elizabeth Line extension – is set to run from Reading and Heathrow into central London and then through to Shenfield and Abbey Wood in the east.

The project is jointly funded by TfL and the Department for Transport.

The line was supposed to have opened in December 2018 but in August the same year it was announced it would not be opening until autumn 2019.

Earlier this year Crossrail Ltd admitted it could not commit to an opening date.

The committee will also look at TfL’s performance last year, as well as rail, freight, taxi and minicab services and buses in the capital.