u/mycketforvirrad

A question megathread will be stickied to the top of our subreddit every Tuesday to catch all of your questions, big or small.

Do you have a question about the Underground, or maybe even the greater London network? Ask it here and our knowledgeable community will endeavour to answer it. Last week's iteration can be found here.

Please note that going forward, all questions posted outside of this thread will be moderated away/deleted.