That page appears to show only one icon for trains, one for trams, and one for subways. No variation or alternative options. I can see incorporating something

That page appears to show only one icon for trains, one for trams, and one for subways. No variation or alternative options. I can see incorporating something like that into the signage around the facilities, or even in the logo, but the entire point of a logo is that it is relatively unique and distinctive and separate from all other things that might be like that — which is the exact opposite of this kind of standardized international icon.