While not a major issue, I would put this under more of a minor annoyance. Curious if an issue for others as well. A couple of areas I routinely drive; the highway I am on changes to another highway. There really is no turn off or similar so one does not lower their speed or anything similar in these examples. The car if in AP at say 75 will abruptly brake to 55 which can be a problem if a car is close behind ; as there is logical reason to brake here. Has to be something in the map telling the car of a speed limit / road change or something that is causing it. Main location is where Rt. 3 heading north ends and becomes Rt. 95 / 128 south of Boston. Any way to change the car's behavior in these commonly driven places?