http://www.metronews.ca/news/toronto/2016/05/31/detailed-plans-revealed-for-one-stop-scarborough-subway.html
https://en.wikipedia.org/wiki/Toronto_subway#System_map
http://www.railforthevalley.com/latest-news/zweisystem/if-broadways-transit-ridership-doesnt-improve-cancel-the-subway/