'The Princes Highway begins in Sydney and terminates in Port Augusta. Or perhaps it is the other way around. In either case, it is a terminus in name only. There is no end to the highway network. In Port Augusta, it bifurcates into the Stuart Highway and the Eyre Highway between a Holden dealership and the cracked shoreline of Spencer Gulf. In Sydney, it intersects with Cleveland Street and continues as Broadway, pulsing veins of traffic toward the city centre. At no point at either end does the road ever cease. It seems our highway system has neared the infinite. Keep driving long enough from anywhere and you will eventually circle the nation and arrive back where you started.' (Introduction)