Greater Bangkok commuter rail

Greater Bangkok commuter rail is a commuter rail system in Bangkok Metropolitan Region, Phra Nakhon Si Ayutthaya Province, Saraburi Province, Lopburi Province, Suphan Buri Province, Ratchaburi Province, Chacheongsao Province, Nakhon Nayok Province, Prachinburi Province, and Samut Songkhram Province. It runs from and to the outskirts of the city during the rush hour, and the passenger number is high.

Source: Wikipedia — Greater Bangkok commuter rail (CC BY-SA 4.0)