
Walk down Cashel Street in central Christchurch right now, and you might spot something odd.
A sign, looking every bit like council property, instructs you to keep your walking speed under 2.83 kilometres per hour.

Walk down Cashel Street in central Christchurch right now, and you might spot something odd.
A sign, looking every bit like council property, instructs you to keep your walking speed under 2.83 kilometres per hour.