Part of Queen Victoria Street, a major City of London thoroughfare between Bank and Mansion House Underground stations, is permanently closing to motorists.
The road will close where it meets Bank Junction, one of the busiest junctions in the capital, from Monday.
It is being revamped under a major improvement programme near Bank station.
A temporary one-way system will be introduced westbound in Mansion House Street, with a diversion route in place for eastbound traffic, including cyclists.
The one-way system, which runs until July, will see a westbound-only one-way route in Mansion House Street, with access to Cornhill eastbound maintained via Princes Street southbound.
Transport for London (TfL) buses which currently travel along the northern part of Queen Victoria Street, including routes 11 and 26, will be permanently re-routed via Queen Street.
The changes are part of the next phase of ‘All Change At Bank’, a City of London Corporation scheme timed to coincide with TfL’s Bank station upgrade. It is due to be completed in the spring of 2024.
Journeys may take longer than normal during the work, with diversions and temporary traffic signals in place.
Planning and Transportation Committee Chairman Shravan Joshi said: “The overall work programme at Bank Junction will make it a safer, more pleasant environment to travel through. This will be furthered by this next phase in the project.
“It means we can enhance this public space in line with our Destination City policy to make the Square Mile a desirable, safe and inclusive visitor destination.”
