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The council has launched its Our Streets project - and will be taking suggestions from the public for the next month.
Council transport group manager Richard Saunders said the council wanted to improve streets and roads for everyone, including motorists, cyclists, pedestrians and people on buses.
During the initial stage of the project, feedback was being sought on nine main streets: Bank St and George St (North Dunedin); South Rd (Caversham); Main Rd and Main South Rd (Fairfield); Musselburgh Rise and Silverton St (Musselburgh); Serpentine Ave and Maclaggan St (City Rise); North Rd (North East Valley); Forbury Rd (South Dunedin); Hillside Rd and Orari St (South Dunedin); and Factory Rd and Bush Rd (Mosgiel).
"We also want to create streets that are easy to understand, with consistent design across Dunedin."
Some possible improvements included more crossings, lower speed zones, lowered and built-out kerbs, the removal of painted flush medians, and the inclusion or development of cycle lanes.
There were no additional costs as the consultation was being managed internally, and there was no fixed budget at this stage for the work itself, Mr Saunders said.
"Following consultation, we will develop some plans and then complete a business case to seek funding support from NZTA."
Improvements were expected to begin in 2020 and completion of all nine sites would take up to three years.
Mr Saunders said the council expected improvements could be made with very limited impact on parking. The consultation was separate to a preliminary plan drawn up last month to make part of George St one-way.
Lessons had also been learned from the council's previous attempts to introduce cycle lanes to South Dunedin in 2013.
Design problems led to some parts of the cycle lanes being ripped up shortly after being built.
Our Streets was "about more than cycleways", Mr Saunders said.
The plan was fluid, and no particular streets had been earmarked for any specific feature.
Feedback could be given through the online survey or interactive map on the council's website by August 8.
Spokes cycling group treasurer Tim Vick hoped the recent announcement would tie in with other ongoing infrastructure projects, such as the Chain Hill and Caversham Tunnel shared path from Dunedin to Mosgiel.