Toronto’s network of pedestrian tunnels
Toronto has one of the world’s great commercial downtowns. Two metro lines, eight suburban heavy railways, an extensive bus system, a highway, and North America’s greatest surviving tram network all converge on a tiny area by the shores of Lake Ontario. Hundreds of thousands of commuters pour into the downtown every day, filling the great towers that line its nineteenth-century streets. As with many downtowns, this causes congestion. Streets and pavements are thronged at peak times. Bicycles, p