[CoryB]

Why in a relatively flat city do we continue to accept the lack of proper acceleration/deceleration lanes on our high speed routes? How many more accidents are we going to have to accept before this changes?

It might not exactly fair however it Phoenix the major routes often have exits every mile with a forced exit lane running between them. Traffic entering at that point has almost the full mile to be getting up to speed. Further, people are actually courtesy enough to move over and let traffic in. Compare that to Winnipeg where a driver recently gave me the finger because they needed to move out of the right most lane that I had just entered when the next lane over was completely empty and they had plenty of time to make the change.