Look at how advanced this is.This is the arrival time of the next train: 1 minute and 50 seconds.It also tells you how crowded the carriages are.
Here is the video URL：
https://www.tiktok.com/t/ZTrqX92uS/
Look at how advanced this is.This is the arrival time of the next train: 1 minute and 50 seconds.It also tells you how crowded the carriages are.
Here is the video URL：
https://www.tiktok.com/t/ZTrqX92uS/
