Submitted by the creator, who says:

I want to share with you my version of ‘icon-only’ Mexico City subway map. Well, technically not a ‘transit map’ and more like a graphical arrangement of icons in topologic order, I was inspired by an earlier post showing Richard Archambault’s work and then looked up for the early Lance Wyman diagrams from the late 60’s that arranged the icons in the same way. After more lines were built, I think the arrangement was never reproduced again though.

I made an horizontal and a vertical version of it. (I like horizontal the most). Both can be found here.

Transit Maps says:

Having wondered what an icon-only Mexico City Metro map would look like when I reviewed Richard’s map back in December, it’s certainly interesting to see a take on that concept. 

This actually still holds together quite well as a (very diagrammatic and topological) map, because the colours of the lines guide your eye along each route quite effectively. Less dense lines have to have their stations spaced out somewhat, and the concept is less effective there. I certainly wouldn’t want to use this to navigate my way around the city, but – as a graphical treatment of the network – this is quite lovely.