If the driver was fired, this accident would not happen again. This is an
unacceptable solution, so one must concede that relying on administrative
procedures (operator action) to safely secure the vehicle is not effective.
Thus an engineered solution should be considered. Drivers apparently leave
their vehicle to use the restroom. Possible solutions: Reconfigure the
bus stop so the buses don't point downhill or toward the condos, relocate
the bus stop, relocate the restroom, etc.