stages of progress for a number of projects. Among the major of these were the installation of apron and taxiway lighting at Kai Tak Airport and emergency generators for Radio Hong Kong and the Sui Lam Hospital for the Mentally Subnormal.
7.05. Contracts were signed and work was in progress to provide a fuel system and an emergency generator for Radio Hong Kong, Lung Cheung Road, the perimeter lighting, electrical commissioning and cabling work at Lai Chi Kok Incinerator and Compost Plants, and the installation of a new emergency generator and modifications to the alternator house under the Kai Tak Airport Interim Scheme.
7.06. A number of projects were completed, among which were the installation of a 290 KVA generator at Smugglers' Ridge for Radio Hong Kong and the installation of an emergency generator set in a hospital.
Installation Section
7.07. This Section carries out new installations and re-wiring of existing installations. Such work includes wiring installations for fire boat berths, navigation lights, main switches in City Hall Plant Room, Police Public Relations Unit and Police Headquarters Traffic Branch, installations of ceiling lights in tram and bus shelters, microphone announcing points, wiring installations of emergency generators in Hospitals, installation of general lighting and power circuits, work in laundries and many smaller items such as typhoon signals, pumps switchboards, etc.
7.08. The Installation Section is also responsible for the electrical engineering of traffic lights, their control systems and other traffic aids. Two types of system are in use in the Colony, namely, linked-fixed time and vehicle-actuated. In the former, one master controller controls a series of traffic lights at various road intersections, changing the lights at each intersection on a time basis to give a steady flow of traffic. In the vehicle-actuated system, the lights at an intersection are changed either by the passage of a vehicle over a pad in the road or on a time basis. Traffic lights were installed or modified at 39 road junctions during the year; there are now 166 road junctions equipped with traffic lights and 1,957 other electrical traffic aids are in operation.
Maintenance Section
7.09. This Section covers the workshop overhaul and site maintenance of electrical equipment ranging from electric clocks and tubular
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