10-29-2022, 08:44 AM
(10-29-2022, 07:57 AM)danbrotherston Wrote:(10-28-2022, 06:14 PM)KevinL Wrote: The reason we don't have centre platforms at the two termini is because in both cases, the end of the platform was too close to a cross street to allow the width of crossover tracks required; going with side platforms shortened the crossovers enough to fit.
I'm not sure I fully understand this. Why can't the crossover occur in the intersection? Or...beyond the intersection? TTC has switches IN the intersections all the time.
You have to recall how baseline the expectations were during planning - anything too far off normal would (allegedly) risk support for the project as a whole. Switches embedded in asphalt would be more expensive, trains moving slower through switches in the crossing would have the cross traffic stopped for longer periods, etc.
If a solution was cheaper and offended fewer drivers, it was selected.