A freeway is a high-speed, high-capacity road designed for uninterrupted through traffic with full access control—no traffic signals, stop signs, or at-grade intersections. Vehicles enter and exit only through grade-separated interchanges with ramps. This design enables continuous high-speed travel by eliminating crossing traffic and conflicting movements. Canadian examples include portions of the Trans-Canada Highway, Highway 401 in Ontario, and various urban expressways. Freeways carry large traffic volumes efficiently but are expensive to build due to interchange construction, land requirements, and design standards. Urban freeways can divide neighbourhoods, generate noise, and encourage car-dependent development patterns. Some cities have removed or buried freeways to reconnect communities and create development opportunities. Provincial transportation departments typically own and maintain freeways, though they pass through and significantly affect municipalities.