don't forget everywhere else has signals that show the driver that the switch is set in the curet way the TTC can't install ones like that without getting approval from the city as it would take a lot more work than the current setup is as it would probably mean that they would have to tear up al, of the streetcars routes to be able to wire the switches to transit control.
Yes, switch indication signals and streetcar-to-switch communications are some of the 3 essential items required for streetcars to safely pass through switches at speed:
1:
Earlier communication to switches. Currently the switch's radio receiver is located immediately before the switch. But to proceed at speed, streetcars would need to request their turns far enough in advance for the switch to completely throw and lock before the point where the streetcar would need to stop braking. Simply relocating the current receivers wouldn't work because it wouldn't be able to keep track of multiple streetcars in the detection area. A new system is required, and the TTC has previously stated that they are interested in installing a modern switch communication system.
2:
Switch Indication Signals. In order for operators to be able to tell that item 1 is complete well before they can see the switch itself, there needs to be a signal near the switch indicating that it is correctly set in a particular direction.
3:
Dual-leaf switches. As we know, single-leaf switches are more prone to derailment than dual leaf switches. They are also more expensive than dual-leaf switches because nobody uses them anymore so the TTC needs to get them custom made. For these reasons, the TTC has stated that they intend to adopt dual-leaf switches, but until a new standard is determined for items 1 and 2, they have no standard with which to install them on the mainline. In yards, where switches are centrally controlled and speeds are limited to 10 km/h, most switches are already dual-leaf. There is no need for streetcar-to-switch communciation since the switches are centrally controlled, and the switches include lights to show which direction they are thrown.
The above info on switch technology is from a TTC report which used to be on the TTC website, but I can't find anymore. The assertion that most switches in yards are dual-leaf is based on my own observations.