It is going to be difficult to predict the actions of irrational actors like bus drivers. You can usually assume that a driver has a vested interest in not damaging their vehicle, but my experience navigating California's city streets has consistently suggested otherwise when busses are involved.

I would group them into a category along with police cars and ambulances due to the prioritization of speed over safety. (Although, in my experience ambulances, are usually very good a prioritizing safety.)