It was only until very recently where I got used to which trains run from each of the four platforms, so having Metros arriving on both sides would have totally confused me not too long ago!
I think the announcements need to enunciate a bit better too. First day in my job I heard the Metro was delayed by 15 minutes which I didn't think was too bad; turns out it was 50 minutes instead, had to get a taxi and was still late!
