r/TransitDiagrams is a subreddit with 45k members. The community frequently discusses map, transit, design, metro, and railway, and the most common flair used is diagram, map, discussion, other, and animation.
A community for all kinds of Transit Diagrams and Maps and their design - a place to exchange and help with self-made Transit Maps and Diagrams.
Popular Topics in r/TransitDiagrams
#1
Map
83 posts
#2
Transit
40 posts
#3
Design
31 posts
#4
Metro
29 posts
#5
Railway
16 posts
#6
Oc
15 posts
#7
Rail
13 posts
#8
Network
12 posts
#9
Fantasy
7 posts
#10
Transit Diagram
7 posts
Flair Used in r/TransitDiagrams
#1
Diagram
: "French Autoroute (highway) system as a Subway map."
95 posts
#2
Map
: "[OC] New and Improved Fantasy Map of Great Lakes Intercity Passenger Rail"
61 posts
#3
Discussion
: "[OC] Feeling too much São Paulo these days? Metro Designer 4 lets you build railway maps in the style of the Paulista Metropolitan Transport Network."
4 posts
#4
Other
: "I built an app that automatically creates transit diagrams from GTFS data"
3 posts
#5
Animation
: "The contraction of US passenger rail from 1962 to 2005"
1 post
#6
Meta
: "Looking for a diagram for an imaginary city that was posted here a few years back, possibly made in Adobe Illustrator. More in the description."
1 post
Member Growth in r/TransitDiagrams
Yearly
+10k members(27.5%)
Similar Subreddits to r/TransitDiagrams
r/CaliforniaRail
13k members
16.2% / yr
r/transit
136k members
25.2% / yr
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Last updated: August 13, 2026