Location: Coastal Hwy and Ocean City Expy, Ocean City No reassurance shield after Maryland 90. In a couple blocks, MD 528 splits into a one-way couplet. The northern portion of the couplet is MD 378. The two routes run parallel to each other for the entire length of the couplet.  S to US-50, N to … Continue reading Maryland Route 528, MD-90 to MD-378