Chongqing's first energy-saving highway was named the national science and technology demonstration road"

Outer ring expressway has become the city's first expressway such "worthy of the name". Yesterday, the outer ring expressway through the Ministry of transportation review, was named the national science and technology demonstration road". It is understood that the outer ring expressway design concept, in addition to more advanced and more convenient measures to drive more comfortable and safe, with a large number of science and technology for energy conservation in construction, this is honored as "the main reason of science and technology demonstration road".

"In expressway, the largest energy consumption of tunnel lighting and ventilation. High speed group, for example, said, for example, a 3 km long tunnel, with an average annual power consumption of up to $3 million. The outer ring highway tunnel 11, the Shi Liang tunnel is 4300 meters long, if the traditional tunnel lighting and ventilation technology, a huge amount of energy consumption per year.

For energy conservation, outer ring expressway tunnel lighting uses a lot of LED (light emitting diode) lamp, sodium lamp energy saving 40% than the same brightness, but also save every year hundreds of million yuan lighting. At the same time, LED lamp life can be more than 50 thousand hours, greatly saving maintenance costs and time.

In addition, while maintaining the tunnel ventilation in the chain, the outer ring expressway tunnel using the energy saving technology of feed forward ventilation system intelligent. Through the induction probe is arranged on the outside, in the traffic before entering the tunnel, the system in advance of the traffic flow to make estimates, then according to the volume of traffic, decided to start the strength of the fan, the car ventilation, ventilation of small cars less.

According to the introduction, through the use of tunnel ventilation energy saving technology, the outer ring expressway tunnel average annual savings in power consumption from 15% to 20%, to reduce electricity costs about 3 million 400 thousand to 4 million 250 thousand yuan. Coupled with the reduction of management and maintenance personnel, to extend the life of mechanical and electrical equipment, the annual cost reduction of nearly 6 million yuan.

Is not only taking a large number of energy saving technology in the construction of the outer ring, another characteristic of high speed, the highway gently into the nature". According to reports, in the course of the construction of the outer ring, there are many mountains along the way to be introduced into the high reservoir, through the laying of the drilling PVC tube, the slope of the green plants to implement automatic drip irrigation. According to estimates, the use of water resources to save dozens of human resources each year, as well as tens of thousands of dollars in labor costs and water costs.