Crownhill Road is set for a major upgrade as part of efforts to boost sustainable transport.
Running at a distance of just under two miles from the A38 at St Budeaux to Crownhill Village, Crownhill Road is currently laid out for one lane of traffic in each direction.
As part of the improvements, dedicated bus and cycle lanes will be added for the entire length of the road in both directions whilst retaining a lane for other traffic.
At the moment, Crownhill Road is on five bus routes with up to 182 passing through every day.
The improvements will make bus times more reliable and allow a cyclist travelling from as far away as St Budeaux to access the cycle routes on Tavistock Road, which connect to Derriford Hospital. It will also help to reduce tail backs towards St Budeaux, improving safety on the A38 slipways.
With buses in their own dedicated lane, it is anticipated that congestion and journey times will also improve for cars.
In addition, alterations will be made to the junctions with Budshead Road, Transit way and St Peter's Road to improve traffic flow and safety while improving facilities for pedestrians.
A consultation on the scheme has now opened with residents able to share their thoughts on the initial designs.
Councillor Jonathan Drean, Cabinet member for Transport, said: "This scheme is all about making the switch to sustainable transport that little bit easier.
"People are not going to start leaving their cars at home overnight but with projects like this, that improve bus reliability and made cycling that little bit safer, we are removing some of the barriers that people might be encountering.
"I look forward to hearing residents' thoughts."
Residents are able to feedback on the scheme online at www.plymouth.gov.uk/crownhillroad
The consultation period will run for five weeks will results and final designs will be shared with the public in the new year.
The scheme is funded by the Department for Transport’s Transforming Cities Fund (TCF), a central Government pot that aims to improve transport provision with a particular emphasis on sustainable transport.