Roads and Maritime Services recently upgraded the section between Westfield Kotara and the Fernleigh Track at a cost of $350,000, building a new pedestrian bridge, erecting "No U-turn" signs and narrowing the traffic lanes from two to one.

However, many residents on Northcott Drive, Muriel Street and Wade Street say the changes have made it more dangerous and the RMS ignored residents' input.

James Grindey said he collected a petition signed by 80 residents who were unhappy with the changes three weeks ago. He said residents had already witnessed one accident when a car mounted the new pedestrian kerb and took out cycleway signage along the footpath.

The RMS has since installed additional fluorescent arrows where the accident took place.

"People are concentrating on merging lanes right where people are encouraged to cross the road," Mr Grindey said.

He said traffic had also increased on Wade Street, with drivers attempting dangerous three-point turns in driveways.

Large numbers of taxis and delivery trucks already use Wade Street to access the taxi bay and an elevated truck delivery ramp at Westfield.

The RMS says more than 16,000 vehicles a day and about 30 to 40 pedestrians an hour pass Wade Street on Northcott Drive during peak times.

A spokesperson for RMS said community feedback had been "largely positive" following the changes.

The widening of the central median was intended to reduce the crossing distance and improve visibility of oncoming traffic.