Trucks rumbling down the main street, Gordon Rd, presented both safety and amenity problems, Mosgiel-Taieri Community Board chairman Andrew Simms said.
"The need for a bypass was first identified by the Dunedin City Council in 2003," he said.
Ten years later, the council’s integrated transport plan signalled separation of heavy transport from Gordon Rd (State Highway 87) was a priority, as a high proportion of people who used it were elderly people and children, he said.
It did not end up happening, and Mr Simms labelled this an injustice, but it is back on the council’s radar after a motion from Cr Cherry Lucas was backed by councillors during annual plan deliberations.
Council staff are due to provide an update in October.
In the meantime, a public meeting is to be held at Coronation Hall, Mosgiel, on July 18.
"The board needs your support to firmly and positively convey the will of the community to the Dunedin City Council decision-makers," the board said in a Facebook post this week.
"While this is a long-term project, the board needs to hear from the Mosgiel community now to establish the level of support for a heavy-traffic bypass."
Cr Lucas said the meeting was an opportunity to canvass community views.
She expected a decision on any preferred route would be a long way off.
She put forward the motion to promote discussion and get the wheels turning.
Mr Simms said it was important to hear from much of the community.
He considered support was not adequately mobilised previously, when the project faltered.
The board said the need for a second, properly constructed, arterial entrance to Mosgiel was obvious to all Mosgiel commuters.
It also highlighted a photograph of a truck in its Facebook post, as it has done previously.
Weighing 53 tonnes when laden, it travelled up and down the main street eight times a day, the board said.
"This truck, like all other heavy trucks using the route, unnecessarily contends with five sets of traffic lights, two uncontrolled pedestrian crossings ... school children getting to and from school and the population of Mosgiel trying to get out of their cars to go about their business."
The truck "bisects the Mosgiel community, interrupting 45 retail businesses, four motels, a rest-home" and more than 400 homes.
That was not the fault of the truck or its operator, but Gordon Rd was the designated heavy transport route, Mr Simms said.
A solution was needed in 2003, he said.
"It should certainly have been dealt with in 2013.
"We are determined, this time, to get a decisive outcome."
