All major cities within Ontario, including but not necessarily limited to Ottawa, Toronto, Kitchener, Hamilton, Niagara-on-the-Lake, Niagara Falls, Kitchener-Waterloo, London and Windsor are covered by all four systems. In addition the major highways from the Québec border to Windsor, from Ottawa to Highway 401, and from Hamilton to Niagara Falls are also covered by all four systems.
Ces quatre systèmes desservent les grandes villes de l'Ontario, notamment Ottawa, Toronto, Kitchener, Hamilton, Niagara-on-the-Lake, Niagara Falls, Kitchener-Waterloo, London et Windsor et couvrent les principales voies de communication de la frontière du Québec à Windsor, d'Ottawa à l'autoroute 401 et de Hamilton à Niagara Falls.