Expensive display board at bus stop outside SMU

There is an expensive display board at the bus stop in Stamford Road outside Singapore Management University. It shows the arrival time of about 20 bus services that passes that stop.

I observed the display board on two occasions. Once, the bus arrived 5 minutes before the displayed time. The second time, it arrived 5 minutes after the display time.

It seems to be an expensive display board that needed complicated software and communication to  show unreliable information.

I prefer a simple display board that shows the service number of the buses that are arriving at the bus stop. This helps me to avoid straining my eyes to signal my deseired bus to stop. I do not need to know the waiting time, as most bus services are scheduled 5 to 15 minutes. 

I hope that the authority will look into the feasibility of this low cost, but extremely useful, technology.

Tan Kin Lian