Work to remove 82km of overhead wires of the electric trolley bus cables in Wellington starts on Wednesday.
Work is planned to last until January 25, with two crews involved.
One crew will start from the Railway Station terminal at the northern end of Lambton Quay, and the other at the Elizabeth St intersection with Kent Terrace and Cambridge Terrace.
Wellington City Council spokesman Richard MacLean told Newshub there is no choice but to remove the wires.
"They do incur probably a seven-figure maintenance bill every year for example, and if we do not spend that money on maintenance then they do become a health and safety risk."
Mr MacLean says it'll take two to three weeks but most of the work will be done at night, closing some roads and forcing late night motorists to take detours.
"Most people probably won't see much activity but gradually the central city landscape in Wellington is going to change.
"The trolley bus wires that have been there for pretty much 70 years are going to disappear from people's view.
"There are longer-term plans for alternative electric bus systems so those will be possibly battery-powered buses.
"But those kind of decisions are still yet to be finalised."
Trolley buses once ran in several New Zealand cities but only Wellington continued with them after Dunedin decommissioned theirs in 1982.
NZN / Newshub.