This is an instruction to manually open the access doors for the line No. 1 and 2.
There is an emergency access device on the right side under the chair on the right side of each access door.
Push the cover inward, hold the lever and pull the lever inward.
You will then hear hissing sound,
wait about 5 seconds until all air is discharged and open the access door using your hands.
For the line No. 3,
the manual opening device is located on the right side of the access door at about eye height.
Open the cover, turn the lever to the right side and open the access door using your hands.
It is extremely dangerous to open the door while the subway is in motion therefore,
please do not attempt to use it unless an emergency situation occurs.