Various shots in a Sapporo city control room of a man at work checking a board and apparatus measuring the air quality to control the pollution, of a light flashing on map with arm of a man showing various dials in evidence. Shot of the control room. Various shots of men at work in computer room with PANs on other men checking large board showing indications and information on the traffic circulation downtown Sapporo. Various shots of men at work, of the traffic board and of Michel Regnier, NFB director, explaining it. Short LAMS of a traffic control box in a street. Few MSs of heating pipes in a building's basement. Various shots of a city model and of Mr Masami Umeuchi, chief of urban restoration, showing things on a map (silent shot).