That interchange marked a change in the parkway's design reflecting an evolution within the engineering community. Previously the parkway had been mostly undivided, with medians only in a few places where necessary. This, a practice of the WSPC, had helped save land acquisition costs. But increasingly medians proved to be safer and more scenic. The segment between routes 52 and 82 at Arthursburg was the first designed as a fully divided parkway, with a continuous median. For the rest of the Taconic's construction, the roadways would come together only when necessary, at bridges and grade intersections.