The warm orange and cold blue hues of the lighting on the Shanghai Yangtze River Bridge play in perfect harmony.

 

The Shanghai Yangtze River Bridge & Tunnel are set to open for traffic soon, and have celebrated the completion of constructions by setting all lights ablaze on October 18th. The Shanghai Yangtze River Tunnel was lit up with bright hues, while the Yangtze River Bridge was awash with warm and cold, blue and orange hues, each in perfect contrast and complement to the other.

The spectacular hues of the main tower of the Shanghai Yangtze River Bridge stand out, illuminated by blue-hued lighting under the dark night sky.

 

The Yangtze River Tunnel is making use of LED lighting to produce bright but cozy hues, and save energy at the same time; the first time lighting of this kind has been utilized in tunnels in China. The long tunnel needs round the clock illumination and is thus a great consumer of energy, accounting for 40%-50% of the total fuel needed for its daily operations. The use of LED lighting cuts that energy consumption by 30% when compared with the annual cost of the energy that would have been expended if fluorescent lighting had been used.

This picture, taken from the air on April 18th, shows the Shanghai Yangtze River Bridge in the post-construction stage.

 

The Yangtze River Bridge is flanked with 1,200 lamps – high pressure sodium lighting fixtures are used instead of the usual metal halide lamps as high pressure sodium lighting has the advantage of providing better luminosity through fog and other weather conditions, and at a much lower energy cost than metal halide lamps. A 250W high pressure sodium lamp provides the same amount of luminosity as a 400W metal halide lighting fixture.

The bridge and tunnel are also employed with intelligent and automated control systems to adjust lighting output during different operational hours and provide illumination as needed.

 

Source: gcpnews.com

 

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