The monorail will stop at three stations – Krung Thonburi, Charoen Nakhon and Klong San – before linking up with the BTS Green Line.
Constructed on a public-private partnership basis, the aim of the monorail is to make it easier for residents in Bangkok’s Thonburi district to travel to downtown as well as to places like Iconsiam.
The unmanned Bombardier Innovia APM 300 trains can reach a maximum speed of 80 kilometres per hour.
Commuters can use the service for free until October 29, after which rides on the Gold Line will cost Bt16 per person.