:Yes, yes, sorry, I know I sometimes can be snappy... I try not to be (I do, really!), but I've seen so much, ahem, unsatisfactory editing by new users that usually I just make the things right and go away, and only communicate them personally if I see that they're here for long. I'm not saying that I disrespect newbies, on the contrary, I believe that their editing Wikipedia is vital, as also that of IPs. But please take pity on me, it's hard to be always smiling and welcoming. Oh well, you did put me to shame... 
 :That said, I'm always open to helping those who seek help! So feel free to ask me if you have any questions. For now, you can check Wikipedia:Route diagram template (which is actually linked to from the template page and which in its turn links to the catalogue and to the category). Also, there's already some at my talk page, see above. Feel free to upload new icons – it's pretty impossible to predict all the variants, so sometimes you do find that a useful icon is missing. But also pay attention to the overlaying technique, it helps a lot. If you would still require some new icon, go ahead, but remember: a) these icons should be uploaded to Commons, not to English Wikipedia; b) they should be categorised to some subcategory of this one; c) they should be edited not with inkscape or any other such sophisticated program, but with a simple text editor – Notepad, Notepad++ and so on. Try opening some existent BSicon in such a program, and try to understand how the code is written. (But do not ask me, that's to much! Please refer to some online source.) Or take the easier path: post a request for a new icon here, we'll be glad to help you!