Tertoolen points out that the layout of the road also needs to be changed. “Roads where you can drive 30 kilometers per hour have speed bumps, they must be narrower and there must be paving stones instead of asphalt. In this way you automatically increase the speed. If a road looks like you can speed through, you will therefore no 30 are driven.”
30 km/h on all roads in Utrecht is slow, but it saves space, traffic fatalities and money
