| Message | That is what the onramp is for.  If you "cruise" in the middle lane, with slightly faster traffic passing on the left, you force the really fast traffic to pass on the right!  Now the people merging onto the highway are forced to merge with the absolute fastest traffic instead of the slowest.  This is a common mistake but a mistake it is.  I causes the highway to accomodate about 33% less traffic than it could. If you are in dense "crystalized" traffic, all lanes are full, all moving at the same speed, then none of this matters.  But if traffic can flow past each other, you should drive in the rightmost lane available to you unless actually passing.  Merging people have to look out for themselves, it is THEIR responsibility to find a spot and merge into it.  If you are in the right lane, you should not "make room" for them; it causes more problems than it solves. Stepping off soap box... 
     - John 
 
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