Transport for London is to review the impact of the changes to the layout of the Elephant & Castle junction as residents complain that more motorists are using nearby streets as rat-runs.
News of the "post-implementation review" came at Saturday's meeting of Borough, Bankside & Walworth Community Council in a written response to a question tabled last year.
At meetings last autumn the community council heard complaints from residents of Harper Road – as well as back-streets in Walworth – which are now being used by motorists avoiding the Elephant junction.
In a written response Southwark Council said: "We have received a number of complaints from other residents regarding the change in traffic patterns in the last 12 months in the networks surrounding Elephant & Castle.
"Transport for London will be undertaking a 12-month post-implementation review of the Elephant & Castle scheme in April 2017.
"Officers will need to analyse the data against 'before' traffic counts and consider what options may be available to address any issues.
"Officers will be able to update the community council in mid-May."