Seeking to one-up rival John Tamihere's double-decker bridge, Auckland mayoral candidate Craig Lord has called for the city to get a monorail.

On Sunday he said it is the "only fast transport system around the world that is financially self-sustaining, and has considerable bonuses over any other form of mass transportation".

Lord admits however he's "still doing the research".

"But firstly there are no rail crossings. The benefit of that goes without saying. Then there is the super advantage of being able to build it pretty much anywhere because it's just poles. This solves the major issue of construction across the unique Auckland geography...

"We could build across waterways and harbours, that's North Shore sorted. We can also transit the many ravines and hills that Auckland is made up of. Think about a high-speed monorail from the regions like Whangaparoa, Kumeu, and Pukekohe. We could even go to Wellsford. East, west, north, south, anywhere and everywhere."

He said if elected, he'll "work with experts immediately to work out routes and costs" and can the planned light rail for Dominion Rd, calling it "slow".

"I believe this is a total game-changer for the future of Auckland, and even better, monorail is environmentally sound."