“Traffic calming should rely on the laws of physics.”
A reader forwards me this fantastic quote from, of all places, Delray Beach, Florida. It’s taken straight from the city’s official website, filed under “Neighborhood Traffic Calming Policy & Guidelines.”
The major difference between traffic calming measures and other forms of traffic control devices, such as stop signs and speed limit signs, which require enforcement, is that calming measures are self-enforcing. Also, traffic calming should rely on the laws of physics rather than human psychology to slow traffic.
Of the three E’s of traffic safety–engineering, enforcement, and education–only engineering is permanent. Long after the police radar gun is put away and the PSA campaign has ended its run on local radio and TV stations, a neckdown, bikelane, speed bump, or other street design will be there doing its job.