Spring cleaning buses.
M/S of a double-decker bus driving into Chelmsford garage and parking between two guide rails. M/S as a man gets on and uses a germicidal spray on the interior. M/S as the driver gets out. M/S as cleaner gets off and goes over to a control lever. A machine drops and fits around the bus, water is sprayed on roof and windows which are also brushed. M/S of machine working its way down, it moves back up to the top position when it has finished. The driver gets back in, water runs down windows as he drives off