Regardless, the Vaughan subway (Hwy 407 and VMC) is a completely different from every other subway extension since the spadina extension because it served no existing demand. The extension to Sheppard West served a huge transit market up there, the Sheppard subway replaced a section of the busiest bus route in the city at the time, the SSE will replace the SRT and serve a huge number of buses in Scarborough, the DRL and RLN will serve huge transit markets of the downtown streetcars, and suburban bus lines, the Crosstown Light Rail Subway will replace 2 of the busiest bus routes in Canada (Eglinton west and east, as well as a section of Lawrence East). All these lines had existing ridership demand of some sort. Vaughan literally had one or two bus routes with pathetic ridership going to Sheppard West. It should have not been built based on that assumption alone (at least not without paying into the TTC).