In Britain, an orange traffic light flashes just before the one below turns green, giving drivers a chance to get ready to put their foot on the accelerator and go.
When I originally saw it while in Northern Ireland a couple of weeks ago, I thought it was a brilliant idea, especially as it frustrates me when cars at the front of a queue can take so long moving on a green signal that the rest of us miss the light.
So I wondered if we needed a yellow 'get started' signal in New Zealand's traffic lights.
But after driving through England during test drives of the Opel products to come here under the Holden badge (see an upcoming Driven for my reviews) I've decided it would be a wrong move.
Kiwi drivers already go through red lights so the orange-before-green signal would mean early starts for bad drivers. And they'd probably collide with a red light runner!