Transportation in Saskatchewan includes an infrastructure system of roads, highways, freeways, airports, ferries, pipelines, trails, waterways and railway systems serving a population of approximately 1,003,299 (according to 2007 estimates) inhabitants year-round. It is funded primarily with local and federal[citation needed] government funds. The Saskatchewan Department of Highways and Transportation estimates 80% of traffic is carried on the 5,031-kilometre principal system of highways.[1]