Upper Queen Street
The City Rail Link will have a station on Mercury Lane, off K Rd, and a possible light rail station at the intersection with Queen St, meaning an influx of people using the road.
The council wants to "create a vibrant space in which people will want to spend time shopping, walking and socialising".
Auckland Transport's cycling, walking and road safety manager Kathryn King said K Rd was an important transport route into the city.
The proposed cycleway was a key component of the growing network of cycleways into and around the city centre.
"Many people already use K Rd to cycle into the city centre, so by providing a protected cycleway, we expect that number to grow," said King.
"The way people get around Auckland is changing with a greater number of people choosing to cycle.
"The cycleway will also be good for local businesses as our research shows that someone cycling is more likely to stop at local shops than someone driving."
The Karangahape Rd Enhancement Project is being delivered by Auckland Transport and Auckland Council with funding from various sources including a targeted rate to local businesses and the Government through the Urban Cycleways Programme.
Public feedback on the plans is open until November 20.
The project is in five sections which can viewed at www.AT.govt.nz/kroadproject or call (09) 355 3553 for more information.