Thailand railways currently under construction. New rail routes, line extensions and infrastructure upgrades — active build projects across the network.
Thailand railway lines currently under active construction: new routes, extensions to existing lines and major rail infrastructure upgrades. Includes new high-speed corridors, electrification projects, double-tracking schemes and regional line extensions. Data tagged in OpenStreetMap by contributors on the ground, reflecting what is physically being built on the railway network.
Thailand currently has 146 railway segments under construction including 112 railway and 34 metro.
Data: OpenStreetMap contributors
Last update: 2026-04-09