Friendship Bridge at Nong Khai Province, across the Mekong River: open Cambodia Aranyaprathet-Poipet Checkpoint: tracks connected but rail checkpoint closed due to COVID-19. Myanmar Three Pagodas Pass Checkpoint: defunct, but projected extension will rebuild the route. see also Death Railway Commuter trains The SRT operates commuter rail services from Bangkok along the Northern and Northeastern Lines up to Ayutthaya, Ban Phachi Junction, Lopburi and Kaeng Khoi Junction. Ten trains run along the route on a daily basis. A new service serving between Thonburi and Salaya was launched on 22 October 2010. The Red Line project is a new commuter rail system also owned by the SRT. and will replace portions of rail lines running through Bangkok, eliminating at-grade crossings. Freight Thai railways transported around 11 million tons of freight per year in 2007-2012, which was around 2% of the total amount of freight moved by all modes of transportation. While it is possible for freight trains to travel between Thailand and the neighboring countries (Malaysia and Laos), the amount of international rail freight presently constitutes only a minuscule portion of Thailand's foreign trade. In 2012, merely 95 thousand tons of export cargo left Thailand by rail, as compared to 12 million tons of cargo exported by road, and 114 million tons of cargo exported by ship. For import, the rail transport's share was even smaller. Thai railways transport both bulk freight (primarily oil products and construction materials) and containerized freight. Most of the freight movement is between Bangkok and sea ports (in particular, between the deepwater port of Laem Chabang and the container terminal in Lad Krabang, in Bangkok's eastern suburbs). In an attempt to increase the railway's share of the nation's freight transportation market, in 2016 the SRT, in a joint project with Japan, started experimenting with small, 12-foot containers. It is thought that, being smaller than the standard 20-foot containers, these containers can be more easily transported by truck between a rail station and the end customer. These containers are being tried on two routes from Bangkok's Bang Sue station: a 722-km route to Lamphun Province in the north of the country, and a 433-km route to Khon Kaen in the northeast. Locomotives and multiple units Active fleet Diesel locomotives Diesel multiple units Steam locomotives Used for special services only. Future railways Track double tracking In 2018, 91% of Thailand's 4,044 km rail network was single-track railway. A