Change up lights on bus?

[jeremyc]

I noticed the other day that the bus I was travelling on (yes, yes - I know) had change-up lights fitted to the dashboard (three green, two amber and three red in sequence).

These were clearly an in-service add-on; they were in a small unit attached to the top of the dashboard binnacle.

Why would a bus need such an indicator; they have a fully automatic transmission that presumably does not allow over revving of the engine, and I assume the driver rarely (if at all) overrides gear selection choices.

Are they trying to encourage lighter application of the throttle by drivers?

[philmots]

Probably like on trucks they have green-amber-red in the rev counter. With an auto truck you can have it in the red all the time if you're heavy on the throttle...

This is obviously mounted to constantly remind them.. They may have a fuel bonus.

[Captain Muppet]

jeremyc said:

Are they trying to encourage lighter application of the throttle by drivers?

This.