Metro Manners - Please Silence All Electronic Devices

After recent experiences on the train, I started creating dynamic "Metro Manners" that could be placed on one of twenty eight new digital ad displays implemented in the system.

Referencing brand guides and a digital display technical sheet, the aim was to communicate across a wide global audience while having each message visually show WHICH Metro line they were riding (in this shot, the Green and Yellow line).

(P.S. Anyone who can assist with Simplified Chinese or Mandarin translations would be the greatest).