Line 3 or Line 4? Shanghai Metro Makes it Easier to Figure Out

Shanghai Metro has eased confusion between Line 3 and Line 4 commuters by adding numbers on the carriage front and next to the train doors.

The line numbers are significantly larger than the previous ones, making them easier to notice, particularly during peak hours.

Lines 3 and 4 run parallel for nine stations, from Yishan Road to Baoshan Road, and share a similar yellow-and-purple color scheme, which has led to mix-ups among riders.

"I take Line 3 a lot, and people often get on the wrong train," said a passenger, identified only by his surname Liu, about the common complaints.

"Some of them have to ask other commuters after getting on the train, 'Is this Line 3 or 4?'"

To address the issue, the Metro operator has added more number signs beside each door, enlarging them to about three times their original size. Additionally, a sign has been placed on the front of each train.

Each train now features 122 number signs, and the full rollout is expected to be completed by mid-November.

Shanghai Metro has reminded passengers to check the numbers next to the doors and at the front of the train before boarding to ensure they are on the correct line.