During my stay in Busan, I mostly used the Metro/Subway system because it’s easy and it has stations near tourist attraction sites. The company website is very informative. They have information pages in English from how to buy the ticket, the routes and tour routes using the metro service. Humetro website. For information on Transportation Card (Bee Card), please read it at CIty of Busan’s website.
One thing that I noticed was how well prepared each station to face emergency situation. I know it’s a must but somehow the emergency facilities in Busan’s metro station were well situated and they were eye-catching. They were placed on the train platform level: