Train Videos for Children, This is a video of Riding a Japanese Local Train. This is a local train I take to work sometimes. The line is called the Keikyu Line.

According to Wikipedia
The Keikyu Main Line (京急本線 Keikyū-honsen?) is a railway line in Japan, operated by the private railway operator Keikyu. The line runs through the Tokyo wards of Minato, Shinagawa, Ōta, and the Kanagawa municipalities of Kawasaki, Yokohama and Yokosuka. The Keikyu Main Line began as a short 2 km line in 1895, and by 1905 had extended from Shinagawa Station in Tokyo to central Yokohama.

AloJapan.com