If I might add something...
Now that Eglinton LRT (Now the ONLY Rapid Transit CIty Line) will have subway speed from Pearson to Don Mills,
Would it be better to leave it the way it is and cut the cost of our plan so we could have more chance to match TC 15B or make it lower...
No it won't. For it to have subwaylike speeds and timeliness the route would have to be fully grade-separated the whole length. The alignment between Martin Grove/Eglinton and the airport would have to be more concise instead of a meandering jaunt of the ACC/Silver Dart. Stations would have to be omitted. It can only tap the higher end of 28-31kmph speed projections if someone doesn't request a stop at Mulham, Eden Valley, Wincott or Lloyd Manor en route. Building these stop locations in the first place (instead of operating a parallel bus a la the 85A) will encourage just that, pedestrians requesting those stops each and every trip. And the trip could be stalled by red lights at any of these intersections regardless. Subwaylike speeds only begin east of Keele.
Plus it is mighty hypocriticial of you to suggest that a larger ridership base be subjected to lower transit standards yet be pushing so hard for a Sheppard West subway that'll carry far less people.
Compare/contrast shall we:
98 Willowdale-Senlac
Total ridership: 1700 daily
Senlac segment roughly half of that = 850
pphpd = 53
7 Bathurst
Total ridership: 21,400 daiily
Divide the corridor into roughly three segments: Bloor to Eglinton, Eglinton to Sheppard, Sheppard to Steeles; the latter then being = 7133
pphpd = 446
104 Faywood
Total ridership: 2700 daily
pphpd = 169
And of Sheppard West itself?
16000 ppd; two segments east and west of Keele St = 8000 respectively
So natural ridership levels for the Downsview-Yonge segment are 500pphpd.
This amounts to for a Sheppard West subway 18,683ppd or 1168pphpd.
By contrast...
58 Malton = 11,250 of 15,000ppd or 703pphpd
112 West Mall = 3850 of 7700ppd or 241pphpd
11 East Mall = 3050 of 6100ppd or 191pphpd
46 Martin Grove = 8050 of 16,100ppd or 503pphpd
45 Kipling = 9250 of 18,500ppd or 578pphpd
37 Islington = 8300 of 16,600ppd of 519pphpd
73 Royal York = 8900ppd or 556.25pphpd
76 Scarlett = 7400ppd or 463pphpd
35 Jane = 19,500 of 39000ppd or 1219pphpd
89 Weston = 10,650 of 14,200ppd or 666pphpd
32 Eglinton West = 20,550 of 41,100 or 1284pphpd
---
Total for Eglinton West subway= 110,750ppd or 6922pphpd
And that is before the Mississauaga Transitway numbers, the local MT routes numbers, the GO Transit transfers numbers, the Finch-Hwy 27 rapid transit numbers and the tally of new customers adding onto existing daily patronage. Easily another 30,000 daily users could be added onto this total for
8797pphpd.
Meanwhile the TYSSE project through roughly the same region and with similar adjacent land usage as Shep West will only be at 2300pphpd by the year 2031. So add in a complex crossing of the West Don between Senlac and Bathurst and one really begins to question the validity of the entire SOS scheme, especially with a seamless Finch West LRT or F.H.C. BRT possibility only 2 kms to the north just as capable of providing a direct rapid link between the two YUS arms and to Bathurst St
at lesser expense.
So you might want to be thread lightly before dismissing the significance of an Eglinton West subway when there components of your plan that can so readily be admonished by professionals who are aware of these ridership level discrepancies, not to mention where corridors are in relation to existing and future developments and nodal travel patterns.