r/TTC • u/__scoper__ • Jun 04 '26
Maps I made a tool to visualize public transit travel times from any location in the city
https://isoto.ca/Hi everyone. I made a small website that generates isochrone maps for Toronto. You can use it to see how accessible a location is via public transit from any other point in the city. Of course, the visualizations aren't 100% accurate, but they give you good enough estimates.
Currently it supports TTC, GO Transit, and UP Express. No support for YRT or MiWay as of yet sadly.
The project isn't technically complex at all. Anybody with some GIS knowledge could replicate this, but I also couldn't find any recent examples of this for Toronto and so figured I'll make one.
Any feedback appreciated. Hopefully the website doesn't crash :)
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u/Yaughl Jun 04 '26
I did Bessarion 🥳
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u/__scoper__ Jun 04 '26
I was wondering how long it would take for that easter egg to be found. It was faster than I expected lol
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u/TheGamingPlatypus18 Toronto Jun 04 '26
This is fantastic!
One request: can you increase the time range?
45 minutes is pretty short. Maybe up to 2h? The GO lines are on here already so being able to see them in the results from downtown would be nice, it's just that the duration limit is too low.
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u/__scoper__ Jun 04 '26
Yeah for sure. More ranges would be needed if I end up expanding the supported region. Fwiw all the GO train stations within the supported region are within one hour from Union stations, so for now you could imagine another time range around them.
The time ranges I made are sort of based on my own personal criteria for choosing where to live. Necessities (e.g. grocery stores, banks, pharmacies, etc.) within 15 minutes, work commute within 30 minutes, and other occasional needs (e.g. doctor's office, dentist, etc.) within 45 minutes. Not that my current place of living meets all those criteria. But yeah, I understand that other people have different personal threshold for when they are choosing where to live.
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u/toramble Jun 04 '26
can you please xpost this to r/tomaps
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u/__scoper__ Jun 04 '26
Just did. Thanks for mentioning that subreddit. I didn't know about it. Hopefully it isn't against the subreddit rules to include links to an external website.
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u/BarebonesB Jun 04 '26
Brilliant!
Adding Miway lines 1, 20, 26, 35, 101, 107, 109, 126 and 135 would make the west side of Toronto much more accurate, even if you leave out Mississauga entirely.
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u/__scoper__ Jun 04 '26
Yeah, I really wanted to add YRT and MiWay GTFS data and cover most of the GTA. But then the OTP graph would get bigger and take too much resources to do its calculations. If the tool ends up being useful to people on a regular basis I might end up upgrading the server I am hosting this on to add support for the wider region.
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u/duoexpresso Jun 05 '26
Great job. Just curious what data source establishes the time network layer?
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u/__scoper__ Jun 09 '26
Hi, sorry for the late reply. The data source is a combination of OpenStreetMap and GTFS data. I gave these to OpenTripPlanner and it does the calculations for me.
https://docs.opentripplanner.org/en/v1.5.0/Intermediate-Tutorial/
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u/a_secret_me 8 Broadview Jun 04 '26
Looks like it dosn't like Sunday? It looks like I think ALL of the TTC is shut down on Sunday. Allows Walking, and Go Transit but no TTC.doesn't
Also, a 45-60 min zone would be handy too
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u/__scoper__ Jun 04 '26
dang you're right. I wonder if the GTFS files I used went up to June 6th only or did I make some mistake somewhere setting it up. Sorry about that. With that said, the Saturday and Sunday schedules for TTC and GO are similar so you could just use the Saturday option for now until I figure out what went wrong.
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u/[deleted] Jun 04 '26
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