The Crossrail 2 - a new rail link between south west and north east London - project has received overwhelming support from the public according to public consultation.
The Mayor of London has hailed the project as crucial in relieving congestion, boosting economic growth in the capital, and offering a vital interchange if the high speed HS2 national rail service goes ahead.
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Rahman was ejected from his powerful job in April by an Election Commissioner after being accused of corrupt and illegal practices.
The service was due to start in September but there is no agreement on pay and conditions such as how many night shifts staff will work.
Would you know what to do if you needed help? Here's the official advice from the Foreign Office.