In article <1105236847.ce736ef357da399d7ff19a3ed0012d10@teran ews>,
says...

>Do you really think speed limits should be set based on the way the
>contributors to this group drive? I'm thankful they're not.

No, they should be set according to the way 85% of the drivers would
drive on that road under ideal conditions. If you take some time to
observe traffic on interstates you will find that according to this
rule, most interstates are underposted.
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Alex