These phenomena are, of course, highly influenced by vehicle speed.

Section control, to measure average vehicle speed over longer distances.

To do this job thoroughly you will want to take account of things like vehicle speed and road surface.

However, there is now increasing evidence that the impact of such measures alone on vehicle speed is very limited.

In order to be used by the air pumps, it must first be brought up to vehicle speed.

It will also narrow the width of the road, reducing vehicle speeds.

Position readings from these vehicles are used to compute vehicle speeds.

This style generally uses an internal governor to monitor vehicle speed and wheel slip.

Under these conditions a light will flash to signal the driver to reduce vehicle speed.

Steering sensitivity is adjusted as a function of vehicle speed.