Trackless trams?

Radio NZ reports:

Visiting Australian transport consultant Marie Verschuer from Curtin University thinks trackless trams would be perfect for Wellington.
At up to three carriages long, they can carry 300 people, and look a lot like a really long bendy bus. But unlike a tram these are fitted with tyres and can run on existing roads.
They cost as little as a tenth of the price of light rail.

Might be worth looking at, if correct. Light rail has a benefit to cost ratio of 0.05 which means ever $1,000 of spending generates a measly $50 of benefits.

“The advantage of this vehicle is that it can actually deviate from the track if there’s a need to do so,” she said.
“If there’s an accident ahead, it can be re-routed.”

Much better than something whose route is unmovable.