This was posted on the SENSE facebook page:
In its 1992 report, the U.S. Department of Transportation cautioned, “Arbitrary, unrealistic and nonuniform speed limits have created a socially acceptable disregard for speed limits.” Lt. Megge has worked on roads with a compliance rate of... nearly zero percent, and a common complaint among those given traffic citations is that they were speeding no more than anyone else.
With higher speed limits, Megge says, police officers could focus their resources on what really matters: drunk drivers, people who don’t wear seat belts, drivers who run red lights, and, most importantly, the smaller number of drivers who actually speed at an unreasonable rate.
[...]
“I don’t want to lie to people,” Lt. Megge tells us. It may make parents feel better if the speed limit on their street is 25 mph instead of 35 mph, but that sign won’t make people drive any slower. Megge prefers speed limits that both allow people to drive at a safe speed legally, and that realistically reflect traffic speeds. People shouldn’t have a false sense of safety around roads, he says.
http://priceonomics....-limit-too-low/
It's very much in line with what any of us can observe happening on our own streets.
Setting limits too low will create a general disregard for them, including in areas where they're actually set correctly for safety purposes. The result is often drivers disobeying the limits, even where they're appropriate (school and playground zones for example).
So if you want drivers to obey the 30kph school zones on Finlayson for Quadra Elementary, don't clobber Quadra street with limits people will become accustomed to dismissing.
Edited by sebberry, 26 July 2014 - 09:11 AM.
Botched the quote tags