Several platforms: they basically ripped out the terminus of the Tokyu Toyoko line and moved it underground to connect to a newly built subway line, with the ac

Several platforms: they basically ripped out the terminus of the Tokyu Toyoko line and moved it underground to connect to a newly built subway line, with the actual changeover carried out overnight in 4 hours between the last and first trains. An astonishing piece of engineering. https://www.youtube.com/watch?v=s__ysTCD1wo https://www.youtube.com/watch?v=s__ysTCD1wo