Christchurch Mayor Phil Mauger is defending One New Zealand Stadium for its lack of facilities for general admission concert goers.

Some of the 12-thousand people with standing tickets at Saturday's 'Once In A Lifetime' show, were surprised to have to use port-a-loos and food trucks outside the roofed venue. 

The permanent facilities were designed for the seated capacity. 

Mayor Phil Mauger told Newstalk ZB's Canterbury Mornings this was always the plan. 

He also said that One New Zealand Stadium may have a smaller set up for the Foo Fighters if sales don't reach a certain threshold. 

"It'll be the cut down version for Foo Fighters if they don't reach a certain number of people." 

They also discussed the consultations taking place for Cathedral Square, and what can be done about accident-prone roads across the city.

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