Maps in underground stations on the Muni light rail network in San Francisco have raised route designation letters and route lines, as well as braille labels for station names. Nice!

I know that it’s entirely happenstance*, but I really appreciate the fact that the M, K, and T lines appear next to each other on the map, making an “MKT” for Market Street.

*Historical aside: Muni streetcar letters were originally assigned alphabetically in the order they came into being, all the way from A to N. Letters then disappeared as many of the old streetcar lines were converted to numerical bus routes, leaving us with the strange assortment of letters we have now. The modern T Line breaks from this naming convention, as it simply refers to the road it mostly runs along, Third Street.

Source: jdaisy/Flickr