My gut tells me that you should just gravitate towards the area of less cars. If the road ahead is clear or clearer, higher acceleration is better for everyone.

My gut tells me that you should just gravitate towards the area of less cars. If the road ahead is clear or clearer, higher acceleration is better for everyone. If the road ahead is saturated but clearer behind, lower acceleration is better. If it's saturated in front and behind, good luck.