There is also this: 1,200 Japanese workers convert above-ground train to subway line in a matter of hours. https://www.reddit.com/r/videos/comments/2msfz2/120

There is also this: 1,200 Japanese workers convert above-ground train to subway line in a matter of hours. https://www.reddit.com/r/videos/comments/2msfz2/1200_japanese_workers_convert_aboveground_train/ https://www.reddit.com/r/videos/comments/2msfz2/1200_japanes...