Calgary is considered a transportation hub for much of central and western Canada. Calgary International Airport (YYC), in the city's northeast, is the third largest in Canada by aircraft movements and is a major cargo hub. Non-stop destinations include cities throughout Canada, the United States, Europe, Central America, and Asia (cargo services only). Calgary's presence on the Trans-Canada Highway and the Canadian Pacific Railway (CPR) mainline also make it an important hub for freight. The Rocky Mountaineer provides regular interurban passenger rail service to Calgary, VIA Rail no longer provides rail service to Calgary.
Calgary maintains a major streets network and a freeway system. Much of the system is on a grid where roads are numbered with avenues running east–west and streets running north–south. Roads in predominantly residential areas as well as freeways and expressways do not generally conform to the grid and are usually not numbered as a result.
Calgary Transit provides public transportation services throughout the city with buses and light rail. Calgary's rail system, known as the C-Train was one of the first such systems in North America and consists of three lines (two routes) on 42.1 kilometres (26.2 mi) of track (mostly at grade with a dedicated right-of-way carrying 42% of the downtown working population). Light rail transit use within the downtown core is free. The bus system has over 160 routes and is operated by 800 vehicles.
As an alternative to the over 260 kilometres (162 mi) of dedicated bikeways on streets, the city has a large interconnected network of paved multi-use (bicycle, walking, rollerblading, etc) paths spanning over 635 kilometres (395 mi).
Medical centres and hospitals
Calgary has three major hospitals; the Foothills Medical Centre, the Rockyview General Hospital and the Peter Lougheed Centre, all overseen by the Calgary Health Region. A medical evacuation helicopter operates under the auspices of the Shock Trauma Air Rescue Society. Calgary also has the Tom Baker Cancer Centre (located in the Foothills Medical Centre), Alberta Children's Hospital, and Grace Women's Health Centre providing a variety of care, in addition to hundreds of smaller medical and dental clinics. The University of Calgary Medical Centre also operates in partnership with the Calgary Health Region, by researching cancer, cardiovascular, diabetes, joint injury, arthritis and genetics.
The presence of the Canadian military has been part of Calgary's economy and culture since the early years of the 20th century, beginning with the assignment of a squadron of Strathcona's Horse. After many failed attempts to create the city's own unit, the 103rd Regiment (Calgary Rifles) was finally authorized on 1 April 1910. Canadian Forces Base (CFB) Calgary was established as Currie Barracks and Harvie Barracks following the Second World War. The base remained the most significant Department of National Defence (DND) institution in the city until it was decommissioned in 1998, when most of the units moved to CFB Edmonton. Despite this closure, Calgary is still home to a number of Canadian Forces Reserve units, garrisoned throughout the city. They include The King's Own Calgary Regiment (RCAC), The Calgary Highlanders, 746 Communication Squadron along with a small cadre of Regular Force support. Calgary is also home to several cadet units, including 52 "City of Calgary" Squadron, the oldest air cadet squadron in Calgary which celebrated their 65th anniversary in 2007.