Brattle Loop
Senior Member
- Joined
- Apr 28, 2020
- Messages
- 1,163
- Reaction score
- 2,077
I personally think Green should be separately color coded by end-to-end segments, as is more common in European designations. Sharing a tunnel is not the same as being the same end-to-end line.
That'd get kind of problematic when the end-to-end segments change, which happens every now and then, and add confusion with run-as-directeds and other irregular operations.
The GL is basically, if incompletely, designated like a NYC subway line, where the color is in reference to the main trunk line, and it's the service designator (letter or number) that defines the actual service pattern using that line. If the T could just be bothered to consistently use the letters in both directions, it'd probably help a bit at making that clear.