I am not in favor of a separate bike path. First, it is an issue for only a couple of months out of the year. Second, I always drive as if the entire current road is a shared bike/auto path ie: slowly. Third, the issue that Lionel brought up about the driveways crossing the path are valid. I live by a popular bike path here in CA. To get out of my street I have to cross the bike path, then stop at a stop sign, before entering the main road. I cannot begin to count the number of times that I have nearly hit a bicyclist on the bike path speeding across our road without looking, even though I am proceeding very slowly and cautiously. And our bike path has stop signs on it for the bicyclists too (they ignore them). 

Meg Murray Dupont