There are two systems to dispaly the name of the next station for trains on the North South line.
The display panel show the station name in words and also indicates the side where the door will open.
The lighted route map shows the lights for the stations that have passed.
Both display systems on the train has been out -of-order for over two weeks. See the photos.
I find the light route map to be unnecessary. The display panel should be sufficient for this purpose.
A simpler system is less costly and less likely to fail.