Originally Posted by merlinextraligh

You're not grasping that the double lines are marked for passing cars moving near the speed limit.


A very slow moving vehicle (farm tractor, bicycle, etc.) alters the equation and the necessary sight distance.


This is a number of states allow you to cross a double yellow line to pass a slow moving vehicle when it is safe to do so under the circumstances.


This link explains the issue. And does the math for the scenario I'm pointing out.


Crossing A Double Yellow Line - i am traffic