You will have to forgive the lighting and angles in the pictures below. When you are driving, you can't stop in the middle of the road to frame a shot. In Maryland, you can't drive and use a hand-held cellphone either. I wonder what they would say about a camera?
Anyway, I left my house at 5:30 in the morning and the sun was just coming up as I saw this sign. The sign says "ALTERNATE RIGHT OF WAY". Now this is what drivers should do in a merge zone, but this sign leaves no doubt about it.
A bit farther down the road, this sign appeared. "Form single lane NOW".