Korean High Speed Rail July 23, 2011 Jim Pearson No Comments Chris Dees, Photo Section High Speed - The Korean Way. The 12:35 PM KTX express arrives at Cheonan station on Korea Rail's high speed network 11-Jul-2011. At speeds up to 300 km/hour, it's only a quick 20 minute ride to Seoul. Photograph by Chris Dees. Post navigation ← previous postNext Post →