Transport officials have rejected calls by residents for a major change to the proposed upgrade of the Linden Street road corridor on the Sutherland side of Woronora Bridge.
Roads and Maritime Services, which has been incorporated into Transport for NSW, has announced it will proceed with original plans after a community consultation process.
"However, in response to community feedback we are working with Sutherland Shire Council on improvements for nearby roads," RMS said in a community update.
The council supported residents on the western side of Linden Street, who claimed last year their streets would become "rat runs" for motorists leaving Sutherland Oval.
They said this situation would result from a proposal to ban eastbound traffic on The Grand Parade crossing Linden Street to the rail line overpass.
RMS said in its response to the feedback the ban "delivers a significant benefit to the heaviest movement through the intersection".
"If the ban was removed from the proposal, customers will lose nearly half the projected time saving including all the time saved during PM peak.
"When The Grand Parade eastbound through movement has a green light, the heavier movements are stopped.
"This contributes to significant congestion in the PM peak.
"Currently about 400 vehicles use The Grand Parade eastbound through movement a day while up to 65,000 vehicles use the corridor.
"The Grand Parade eastbound through movement is allocated about 12 per cent of the available traffic light time and accounts for less than one per cent of the total traffic.
"Once the ban is implemented, we will change the way the intersection operates to remove a phase."
RMS received over 600 pieces of feedback about a range of issues, including a petition regarding the proposal to ban The Grand Parade eastbound through movement signed by more than 250 people.
About 46 per cent of respondents supported the overall proposed upgrade, while 39 per cent opposed to some or all aspects and others did not state a preference.
Residents and councillors who protested over upgrade plans for the road corridor on the Sutherland side of Woronora Bridge have been assured their message has been heard.
They now have to wait to see whether any changes will be made on the Linden Street corridor pinch point project.
The formal consultation period has ended and a detailed design will be prepared.
The project includes adding a lane to Linden Street between River Road and Leonay Street and changing traffic movements at the intersections of River Road, Leonay Street and The Grand Parade.
Residents west of Linden Street, who were supported by Sutherland Shire Council, claimed last year their streets would become "rat runs" for motorists leaving Sutherland Oval.
This situation would result from a proposal to ban east-bound traffic on The Grand Parade crossing Linden Street to the rail line overpass.
Left and right turn movements would be allowed but, to reach the overpass, motorists would have to travel through back streets, which are at present very quiet.
Heathcote MP Lee Evans said in a statement on Friday, "The formal consultation period has wrapped up, and Transport for NSW is considering all of the feedback from the community on this important commitment".
"More than 200,000 people were reached in person, online and by letter, with hundreds having their say," he said.
Mr Evans said the project could reduce return travel times by up to eight minutes for around 65,000 vehicles travelling between the Woronora Bridge and the Princes Highway every day.
Miranda MP and Parliamentary Secretary for Transport and Roads Eleni Petinos said the next step was for Transport for NSW to complete a detailed design.
"The community will be kept informed," she said.
"We have listened to community feedback about the project, and will continue to work with Sutherland Shire Council to minimise impacts on the local community through our detailed design process."
Ms Petinos said about 6000 motorists and 500 bus passengers used the corridor every hour in peak periods.