I found this image on the Ministry’s flickr account. This won an award – not for the design (though it should) but for Construction Management and Supervision Services.
I have often written on this blog about roundabouts – and why they must never be confused with traffic circles. This is Highway 5 and Clearwater Valley Road. I will need to go find out on Google exactly where that is as the MoTI have not provided a map reference.
All the info you need is here as a pdf