Subway trains run by railway.
Metro trains run by rail.
This video shows the Kiev Metro, which travels by underground railway. The video is for children. In the children's video there are such trains as: blue subway cars and metro trains with advertising (advertising cars, colored cars, color metro). The so-called colored subway cars. Metro in Kiev is very bright and colorful. Metro is one of the types of railway transport. Such trains are very popular with children. The Metro goes underground and stops at the stations. It can also be called an "underground train". In Kiev, there are three branches of the metro: the Svyatoshino-Brovary line, the Kurenivsko-Chervonoarmiiska line, the Syretsko-Pecherskaya line. They are also called: the red branch of the subway, the blue branch of the metro and the green branch of the metro.