In article >, James H. Hood wrote:
>
> Brent P > wrote in message
> ...
>> In article >, Magnulus wrote:
>> > Collision at 75 vs. 55 mph has alot more energy behind it= a higher
> risk
>> > of injury/death. Much higher.
>>
>> Only IN a crash. However, the higher speed limit when more appropiate for
>> the road will PREVENT the crashes in the first place.
>
> Which explains why there are more crashes on a highway than on my street
> where the limit is twenty, right?

Look at the values for interstates vs. surface streets.

> This persistent notion that crashes are caused largely by different speeds
> is absurd.

No such claim was made.

However, underposted speed limits have been shown to be safety negative.