I just completed a round trip from Birmingham AL to the Ohio Valley. Along the way, I found it increasingly difficult to maintain a legal speed because it can change dramatically within less than 10 minutes. I see no reason for the yo-yo limits.
Not counting construction areas, the first that I encountered are at the north end of Alabama before Tennessee. For whatever reason, the speed limit changes from 70 to 65. As soon as you cross into Tennessee, it is 70. There is absolutely no visible reason for the change, but there it is.
As you progress further in Kentucky, the speed limit is all over the place. 70, 55, 65, 60 and you had better pay attention of you will be speeding. Again, outside of construction I don't see the point.
On the return trip, I noticed along I-26 a lot of changes. Within 10 minutes the speed goes from 70 to 55 and then multiple other speeds before you finally see 70 again.
It is time to get this mess cleaned up. If you are on an interestate highway, then the speed limit needs to be consistent unless it is a large metro area or construction.
