Before we all blame the driver who or may not be at fault, it would be interesting to find out some more about why it was 'off route'. Many times as a driver I have been diverted 'off route' because of roadworks accidents and this country's general love of chaos and crazy planning. Whilst ultimately it is the drivers responsibility regards vehicle height, you have to have some feeling for the poor chap if sudden diversions, with a bus full of moaning passengers in traffic for forgetting himself. Another incitement against one-man-only operation methinks.

Or he could be a numpty!