It is reported, after investigation and experience, in shaanxi province to the led lamps and lanterns of energy-saving, environmental protection, efficient lighting efficiency gives the full affirmation. So in bao han highway comprehensively adopted in the construction of the led lamps and lanterns, the tunnel take past use of high pressure sodium lamp, all
it is reported that the shaanxi province after a variety of research and use of experience, has been fully affirmed the leds are energy saving, environmental protection and efficient lighting efficiency. Therefore, led lights in BaoHan highway construction has made full application and in high pressure sodium lamp is used in the tunnel before led tunnel light. According to relevant personnel of shaanxi province highway group introduced the traffic light pole of prices, the company also introduced a tunnel lighting intelligent control system, according to the different tunnel light automatically adjust the tunnel light switch, reduce the driver in and out of the 'black hole effect' of the tunnel, to ensure the driving comfort and safety. According to statistics, the use of LED lights, highway lighting system operating costs saved by more than 50%.