I didn't know if I should make a new thread, but all the talk about GO system expansion got me wondering about the zones that GO uses. All GO zones are two digits. For the most part, GO stations in Toronto use a number that starts with 0, e.g. Union is 02. Anyway, there's less than 100 possible GO zones, so I decided to make a chart of all of them. There aren't many left, so I'll list them all:
zone 01, 10, 25, 26, 27, 28, 29, 30, 36, 40, 41, 50, 59, 66, 70, 78, 79, 81, 82, 83, 84, 85, 90, 98, 99. (If any of these zones are already taken, please to direct me to the appropriate table if I missed it).
Anyway, I don't know why Union wasn't zone 01, and why they skipped on 10. 25-29 would be ideal for a continuation of Milton service outward through Puslinch (25), Cambridge (25), Woodstock (26), Ingersoll (27), London (28, 29). Kitchener/Waterloo could get 40, 41 (continuing from Guelph's zone 39). And I stated above, The Niagara Falls route could get 81-85.
I know it's minutiae, but I'm curious and I find it interesting.
I guess we'll see the Niagara Falls zoning numbers in the near future. If anyone knows already, feel free to share!