Before revision: Two traffic calming measures on a road in England: speed cushions (the two reddish pads in the road) and a curb extension (marked by the black posts and white stripes) Signing indicating that a motorist is approaching traffic calming devices Traffic calming uses physical design and other measures to improve safety for motorists, pedestrians and cyclists.
After revision: car drivers,Two traffic calming measures on a road in England: speed cushions (the two reddish pads in the road) and a curb extension (marked by the black posts and white stripes) Signing indicating that a motorist is approaching traffic calming devices Traffic calming uses physical design and other measures to improve safety for motorists, pedestrians and cyclists.