The Seoul Metropolitan Government will open phase 3 of subway Line 9 on December 1, 2018, which is set to include eight stations from Samjeon Station to VHS Medical Center Station.
Once phase is operable, mobility around the city is anticipated to drastically improve. The travel time from Gimpo International Airport Station to Olympic Park Station, in particular, will be reduced to be inside of 50 minutes without the need to transfer, rewarding travelers with an extra 22 minutes to spare.
In preparation for the line 9 extension opening, the Seoul Metropolitan Government is to conduct trial operations from October 7. On account of schedule changes following initial trial operations, it is advisable to check the timetable in advance and note that passengers are not allowed to embark at any of phase 3 stations during this period.
Once trial operations commence, service will be extended by 8.9km with a reduction in operation frequency during the weekday from 502 to 458, and 416 to 388 on the weekends. Accordingly, service intervals will increase approximately from 0.6 minutes to 1.5 minutes during the morning rush hours. Outside of these hours, both regular and express train service intervals are to also increase by one minute each. Please refer to the amended timetables located on Line 9 subway platforms and waiting rooms.