Ottawa to Kanata in the west. Two major interchanges anchor either end of this section: in the east, Highway 417 diverges south towards Montreal at the Split, while the Queensway continues east as Ottawa Regional Road 174 and Aviation Parkway branches north; in the west, Highway 416 travels south to Highway 401. The core section of the Queensway is eight lanes wide, four per carriageway. The freeway is elevated on a berm along some central portions of the route, providing views of downtown and the Gatineau Hills to the north. This section was constructed along a former Canadian National Railway railbed. The route bisects central Ottawa with downtown and the Parliament Buildings to the north of the highway and residential neighbourhoods including the Glebe to the south. Towards the Richmond Road interchange, the original western terminus of the Queensway, both sides of the freeway are lined by residential subdivisions. Between Eagleson/March Road and Moodie Drive in the west and between Blair Road and Place d'Orléans Drive in the east, a bus-only shoulder is used by OCTranspo's Transitway rapid-transit network. Several closely spaced exits serve the downtown core of Ottawa, including Nicholas Street, Bronson Avenue and Metcalfe Street; the former was once designated as various provincial highways, most recently Highway 31. West of Highway 416 West of the interchange with Highway 416, the freeway enters the suburb of Kanata and travels through it in an east–west direction. At Exit 145, the route encounters the eastern terminus of Highway 7, which travels southwest to Peterborough and Greater Toronto and provides an alternative route to Highway 401. Highway 417 makes a broad 90-degree curve to the north to meet with the midpoint of the Carp Bypass at the former Highway 44 (now Ottawa Regional Road 49), at which point the highway returns to a rural setting. The Carp Bypass was built in the mid-1960s as a bypass of the existing Highway 17, which meandered through the communities of Carp, Kinburn and Antrim; the former highway is now Donald B. Munro Drive, and lies to the east of Highway 417. The bypass was built as a two lane road with full control of access, avoiding existing properties and easily facilitating the upgrade to a freeway. North of Antrim, Highway 417 travels in a straight line parallel to old Highway 17 as far as Arnprior, where it curves to cross the Madawaska River. The divided