Oh very WIMsical.

These rather innocent looking wires are actually part of a Weigh In Motion (WIM) station. It can measure 170 different types of data, type of vehicle, number of axles, weight, speed, even tyre pressures! The results are downloaded to Transit NZ on the mobile phone network. Truckies are of course extremely suspicious of this activity, though this one is for a statistical data base. Naturally I have been telling them it is hooked to an infrared x-ray video camera and several orbiting sattelites, "And we are not allowed to tell you what it does..."
Rest Area 300m