disappeared as the A40 Autobahn supplanted it. In the Republic of Ireland, National Primary Routes are often realigned after the construction of new motorway sections, dual carriageways or bypasses. The old route thus loses its national route status and is usually redesignated as a Regional Road. New South Wales Most (old system) state and national routes in New South Wales are decommissioned routes. Among those was state route 30 between Ryde and Kellyville that existed between 1974 and 1993. References Former numbered highways Former roads History of road transport Highways