Ainslie St. Transit Terminal is the main hub for local Grand River Transit bus services in Cambridge, Ontario. It was built as a replacement for the Mill Street Terminal, in response to a 1988 report, commissioned by the city, which concluded that the existing facilities were totally inadequate and should be shut down. The building is a single-story facility with a waiting room, ticket counter, public washrooms, and vending machines. It is surrounded on all sides by bus platforms; the only access to and from the surrounding streets is by crossing the buses' right-of-way.