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Old 12-01-2009, 10:08 AM   #7744
SteveDallas
Your Bartender
 
Join Date: Jan 2002
Location: Philly Burbs, PA
Posts: 7,651
The corporate campus where Mrs. Dallas used to work had a speed limit of 12. I asked about it, and apparently the principle is that boring old multiple-of-5 speed limits just slide past people's notice, but an "unusual" number like 12 or 17 will attract their attention and make them more likely to slow down from street speeds.
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