7mi of my 9mi commute are in posted 45mph zones where cars are going 50mph on multilane roads, 2mi are on 40mph posted, but much more dense traffic. I commute opposite rush hour, so while traffic is dense with no significant gaps, it is also fast moving.

I ignore every passing car, to do otherwise is to spend the whole time looking in the rear view mirror as there is a constant stream of traffic.

Al