South Korea - railways currently under construction. Active build projects — new routes, line extensions, and infrastructure upgrades — across the rail network.
South Korea - railway lines currently under active construction: new routes, extensions to existing lines, and major 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.
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