While I like the integration with the BD line, and that may well attract some new riders, 3/4 of the ridership of the RT is from feeder routes. And with half the stations, it's has inferior integration with the bulk of its ridership source.
I hate to say it, but the only hope for this extension is for it to link up with the Sheppard Line. But that just puts us deeper in a hole, and more importantly, every forever under-utilized dink subway station built just takes that much more resources away from building truly needed subways like the DRL.
Despite having fewer stations, the subway option will have same, or even slightly better, integration with surface routes as the SLRT option:
- All buses running to Scarborough Centre would connect there, no matter subway or SLRT.
- Lawrence East bus would connect to SLRT or to subway equally well.
- Ellesmere bus will not be connected properly to the subway, but it is poorly connected to SRT anyway.
- Midland bus is the only one disadvantaged by the subway scheme, but not dramatically disadvantaged as it will run to the Kennedy station.
- Brimley bus can actually benefit from the subway scheme if they add a station at Brimley and Eglinton.
- Sheppard bus or Sheppard LRT will be better and more usefully connected to the subway if the latter comes to Sheppard & McCowan. Imagine someone living on Sheppard between Kennedy and McCowan. With the SLRT scheme, if they want to get onto the subway they would have to backtrack east to Progress, hop on SLRT, and then transfer again at Kennedy. With the subway scheme, they simply ride to McCowan and get onto the subway.
I would not link Scarborough subway to the Sheppard subway, now or in the near future. The ridership north of STC will be too low to justify the capital and operating costs, even though the combined subway would have some network benefits. Furthermore, the combined subway will kill any hope of a better transit east of STC, as all money will go into the subway.