‘Slightly haunted but manageable’: new signs cause confusion – and delight – in Christchurch

A series of official-looking signs with odd warnings erected in Christchurch have been causing confusion to passersby Photograph: Cameron Hunt/Supplied

Outside an abandoned building in New Zealand’s second-biggest city, a sign reads “slightly haunted but manageable”. In the middle of a busy shopping strip, pedestrians are warned to keep to a 2.83km/h walking speed. In another part of Christchurch, one piece of signage declares simply “don’t”.

The baffling boards are not an overzealous new council initiative, but a piece of art designed to “play with the way we take authority and signage so seriously”.