Submitted by Miles Taylor, who says:

Here’s the system “diagram” of the TST bus system south of Lisbon in Portugal. It’s impossible to tell what any of the routes are since they’re all just blue lines zigzagging across the map. Not to mention the place names are in comic sans. Ugh.

Transit Maps says:

The only – and I do mean only – saving grace for this map is that it appears on the same web page as an embedded and (somewhat) searchable Google Map of the transportation area, so no one ever actually has to use this.

Judged solely on its own merits, there’s absolutely no doubt that this map is absolutely useless at anything more than indicating the size of the service area with an approximation of routes slapped on top. Which routes go where is impossible to decipher, nor can any distinction be made between suburban, urban or express routes. The map as a whole is rendered pretty poorly, and the use use of Comic Sans just adds further insult to the viewers of this terrible piece of cartography.

Our rating: Straight to the Hall of Shame! Embarrassingly bad: zero stars!

Source: Official Transportes Sul do Tejo website