The method was to mark out areas of responsibility according to the routes they followed to and from work each day and to report any trash or mess or unsightly construction work they spotted along the way to the authorities so it could be cleaned up.
方法是依照每日上下班行經路線，畫定責任範圍，遇有任何髒亂、工地污染等，都須主動查報，再交該區清潔隊處理。