Before revision: Chicago Transit Authority control tower 18 on the Chicago 'L' Highway 401 in Toronto, the busiest highway in North America Hard infrastructure, or built infrastructure, is the physical infrastructure of roads, bridges, tunnels, railways, ports, and harbors, among others, as opposed to the soft infrastructure of human capital and the institutions that cultivate infrastructure.
After revision: Chicago Transit Authority signal tower 18 on the Chicago 'L' Highway 401 in Toronto, the busiest highway in North America Hard infrastructure, or built infrastructure, is the physical infrastructure of roads, bridges, tunnels, railways, ports, and harbors, among others, as opposed to the soft infrastructure of human capital and the institutions that cultivate infrastructure.