Ind. trooper lauded as 'hero' for citing 'slowpoke' driver

gbopp wrote:

valhalla360 wrote:
PS: If everyone is going faster than the speed limit, the speed limit is set incorrectly. The Institute of Traffic Engineers recommended practice is to take the 85th percentile speed and round to the nearest 5mph when setting the speed limit. If 90% of traffic is exceeding the speed limit, it's not the 90% of drivers that are in the wrong, it's the officials setting the speed limit that are wrong.

I've read this many times in the past. If the theory is correct, most Interstate Highway speed limits should be posted at 90 MPH and, 15 MPH school zones would eliminated. :B

Before during and after the 55mph limit, 85th percentile freeway speeds have run around 72mph.

15MPH school zones are wrong. They will typically have 95% or better violation rates unless heavily enforced. Slower doesn't necessarily mean safer.