the visual navigation aids adopted by airports include lighting, signs, sign boards, beacons and sign facilities. the visual navigation aid lighting system is the main object of visual navigation aid engineering. it consists of the approach-light system, runaway lighting system, taxiway lighting system, relevant power supply system and control system. the lighted visual navigation aids installed at airports provide pilots with the information on airport position, runaway position, direction and alignment guidance in case of limited visibility or at daytime. the visual navigation aids adopted by airports are commonly compared to eyes of an airplane.
apart from surface signs, the company also runs business involving the construction and installation of visual navigation aid lighting, sign boards, beacons and signal facility systems. ever since the first installation and construction of visual navigation aid lighting engineering for civil-aviation airports in the 1980s, the company has undertaken the glorious traditions of air force communication soldiers. with adept business skills, rigorous attitudes towards and a perseverant fighting style, the company has met clients’ demands and guided the industry to improve the quality of visual navigation aid lighting engineering with technological innovations. every time the company accomplishes one airport project, it receives praise and achieves one quality upgrade. it has accomplished visual navigation aid lighting engineering for the no. 1, no. 2, no. 3 and no. 4 runways of shanghai pudong international airport and the eastern and western runaways of hongqiao international airport. upon completion, each project became new standards for the installation techniques and quality level of visual navigation aids of the year. the visual navigation aid lighting engineering for no. 1, no. 2 and no. 3 runaways of pudong international airport all received the award of national quality. the quality award for the visual navigation aid lighting project of hongqiao international airport is under approval. the recently completed visual navigation aid lighting project of no. 4 runaway in pudong international airport was particularly characterized with higher quality upgrade and technique innovations, making it a new milestone for domestic construction and installation techniques of visual navigation aid lighting engineering.