Measuring Vehicle Speed With Laser
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I can remember the anticipation when our highway patrol unit was issued it's first laser speed measuring device, an LTI 20/20 Marksman. Imagine! Here was a device that we could point at a single vehicle in the traffic stream and accurately measure only it's speed. It was fast enough to re-target and measure all the vehicles around it too. No one would want to use hand held radar once we were trained on this.

This video comes from New Zealand, another jurisdiction that tends to be more graphic with it's road safety advertising. Two drivers stop in freeze frame and discuss the collision that is about to happen. One apologizes for driving too fast and the other for not stopping at the stop sign. The driver that failed to stop highlights the fact that he has his son in the car. Both bow to the inevitable, re-enter their vehicles and the crash ensues.
Nadia Brownson was driving her pickup truck on First Avenue, within a 50 km/h speed zone, in Prince George on a rainy, autumn night. Scotty Bryan and Tony Shubert had been dropped off near the Dominion Street intersection and were crossing First Avenue from north to south near a nightclub. They saw Ms. Brownson approaching but thought that they had sufficient time to cross.