One pet peeve that gets to me is something that's done on a lot of commuter railways and S-Bahns, the 10/20 minute schedule. The schedule looks like:
2:10
2:20
2:40
2:50
3:10
etc, when it should be like this:
2:10
2:25
2:40
2:55
3:10
This minimizes waiting and allows for frequent service every 15 minutes.
What are your pet peeves?
The buses I deal wit run quite regularly, but during rush hour they just make traffic worse, and it wouldn't even be possible to run them every 5 min because of how busy it is heading in specific directions. If there were less cars, or even bus only lanes, I wouldn't be so against them though. It is a workable solution, but a street car is better in almost all situations a bus is used (and if the bus has to take a highway, train is better). But those too need a separated lane or else it makes traffic hell.
The real problem here is clearly cars though. I will bury my hatchet against the bus until after we have defeated the car. But then I'll be back on my anti-bus train.