 At exit 4, US 19 Truck splits from I-279 and US 19 Truck continues towards the north at-grade as McKnight Road, a frequently congested divided highway known locally as McNightmare Road.In Ross Township, US 19 Truck interchanges with Babcock Boulevard and shifts towards the northwest.The remainder of the route widens to six lanes, and heavily lined with shopping centers and large malls, including North Hills Village, Ross Park Mall, and McCandless Crossing.