Transport for London has launched an official consultation on plans to alter the junction of Tower Bridge Road and Queen Elizabeth Street.
"We are proposing to improve pedestrian crossing and cycle facilities at this junction and ban the left-turn (except cycles) southbound on Tower Bridge Road heading into Queen Elizabeth Street to reduce through-traffic and make it safer for pedestrians and cyclists," says TfL on its consultation website.
The consultation period runs until Bank Holiday Monday 29 August.
The junction forms part of National Cycle Network route 4.
If the scheme gets the go-ahead, work will be carried out during the three-month closure of Tower Bridge to motor vehicles from 1 October this year.