The issue
My transports are highly overloaded, lots of transport requests are not fulfilled, but the indicator still says "stable".
Expected behavior
The indicator should give a warning, if transport requests have to wait for a long time.
To Reproduce
Describe steps to reproduce the issue here, for example:
- Load attached save '...'
- Do xxx '....'
- Strange thing happens '...'
Additional context
- Game version: 0.5.0c
- I have a lot of idle vehicles attached to mines, but none for regular transport.

