Sure most have experienced the inconveniences of RT 4 paving, looks like a nice new surface, but...
Next time you drive the route, you'll notice a section of the asphalt on the run that isn't torn-up...
When I was in USAF civil engineering back in the late 80's - early 90's, called it Flexible Pavement.
I guess we were fashion forward. Concrete was Rigid Pavement.