The Lewes Road bus and cycle lane works are due to be completed by the end of next month – about three months ahead of schedule.
And the new lanes will be officially opened at an event in early October.
Brighton and Hove City Council said: “Once the works are complete, the legal enforcement of the bus lanes and parking restrictions will commence.”
The council said in a newsletter to people living along and near Lewes Road: “Look out for warning signs along the route in September for further information.
“As part of the project we plan to instal 19 new real-time information signs at bus stops in the areas of Moulsecoomb, Bevendean, Coldean and Hollingdean.
“Based on requests we have received from local residents and information from the Brighton and Hove Bus Company, we are now finalising the list of locations.”
The council plans to put up the real-time information signs in the new year.
It added: “Feedback received as part of the consultation in 2012 is being used to help shape the improvement plans for the Vogue Gyratory.
“It is anticipated that improvements to this junction will start in the new year.
“The plans will be made available for the public to view before the work starts.”
In the same newsletter the council also gave an update about progress on the building of an 8ft-wide (2.5m) limestone path between Woodingdean and Falmer.
The path is also due to be finished by the end of September.
The council said: “To avoid damage to the farmer’s crop during construction, works have started in the middle section.
“However, all sections will be completed, creating a continuous off-road path between Woodingdean and Falmer for the future enjoyment of walkers, cyclists and horse riders.”