Korea Era editorial · 2026-10-12

Check local versus express before boarding Line 9

Read the platform destination and service type, then check that your stop is served. An express service is not automatically the right train for a short trip. If uncertain, confirm with the station display or staff before boarding.

Platform screen doors and signage on Seoul Subway Line 4 at Seoul Station — Reference photograph, not evidence of current service or conditions.
Image credit: LERK · CC BY-SA 4.0 · resized