Highway 427

King's Highway 427, also known as Highway 427 and colloquially as the four-twenty-seven, is a 400-series highway in the Canadian province of Ontario that connects the Queen Elizabeth Way (QEW) and Gardiner Expressway with York Regional Road 7, formerly Highway 7. An arterial extension continues 800 metres (2,600 ft) north to Zenway Boulevard, known as York Regional Road 99. This arterial extension will likely be replaced by a proposed northward extension. It is Ontario's second busiest freeway by volume and third busiest in North America. Like the nearby Highway 401, a portion of it is divided into a collector-express system with twelve to fourteen continuous lanes. Notable about Highway 427 are its several multi-level interchanges; the...