Rick Royals bought a milling machine almost because he had to. The co-owner of Royals Contracting, a Raleigh, NC, paving, milling, and patching company, had bid a 4-inch-thick patching job in 2002, ...

First Avenue in New York City has to rank as one of the busiest city streets in the world. It is a concrete roadway that spans five lanes wide; traffic runs one way to the north. The avenue carries ...