The road system is imperfect, resulting in chaotic urban traffic congestion, serious traffic jams, car whistling, serious noise pollution, and serious interference with urban passenger transport organizations. The construction of road traffic facilities is far from the demand for urban traffic development. The urban roads have a difficult situation of “throws are crowded and the north and south are not smoothâ€. Therefore, the construction of a smooth road grid bureau is not only the need for the development of the western region, the economic benefits of Lanzhou, but also the need to improve people's living environment and reduce noise pollution. The main and secondary roads of the city will be reconstructed and rehabilitated. The main roads in the east-west direction will focus on the roads of refurbished vehicles. The secondary roads in the city should speed up the widening of the project and form a high-grade urban traffic network. In order to alleviate and improve the traffic congestion and whistling of city entrances and exits, bridges and extension roads are built at the entrances and exits of the city's east, west, south and north. Construction of pedestrian crossing bridges or pedestrians, to solve the problem of mixed vehicles, traffic jams, frequent whistling. To completely solve the traffic pollution problem and operation system, not only to facilitate travel, but also to reduce noise and exhaust pollution, it is necessary to start the urban light rail transit project and build light rail traffic along the south bank of the Yellow River from west to east. Control urban environmental noise pollution with technological progress: (1) Vigorously develop and promote low-noise products to control industrial noise pollution. It is necessary to attach importance to and strengthen the sound source noise reduction technology and research. The production of low-noise equipment with remarkable effects and reliable performance is supported by economic means. It is strictly forbidden to leave the factory for unqualified products, strengthen the technical management of noise control equipment and equipment production, set standards, improve quality and reduce costs. (2) Actively carry out research on building construction noise prevention technology and new technology, and gradually replace construction equipment with backward process and serious noise. For example, the development of commercial concrete can not only ensure the quality of construction projects, but also reduce urban environmental noise and reduce environmental pollution. Scientific management of the construction site. If the sound insulation board is used as the construction site wall, the noise reduction effect is obvious. (3) Consider the application of noise prevention technology in the construction or reconstruction of highway and railway projects. If the slope of the road is properly selected, the slope of the road is too large, which may cause the large truck to increase the noise when climbing the slope, and select the type of pavement with low noise. Adjust the distance between the road and the residential or office building. Set an effective noise shielding field. The railway sleeper is selected throughout the whole process, the reinforcing material of the lower part of the concrete sleeper is used, and the rubber pad is added between the steel rail and the concrete sleeper, and the noise can be reduced. (4) Noise control of the car and the train itself. In the near future, the main control horn sound. In the long run, low-noise locomotives and muffler must be installed, and direct exhaustion should not be carried out, and better car and motorcycle mufflers should be developed. (5) Measures such as sound insulation walls can be installed on both sides of the lane with high noise value to reduce the pollution of various noise sources. Summer casual dress:we have various kinds of style for ur choice,if u like simple design,u can choose solid color:strapless dress,flounce dress with rose red color and etc,if u would like to go on vacation or join a party,u can wear sexy long dress,longer vertical will looks thinner and taller,we have some styles for ur choice,by the way,if u have ur own idea,please tell us or send us ur draft,we will try our best to do well as requested, Casual Maxi Dresses,Casual Wear For Women,Summer Casual Dresses,Long Sleeve Dress Casual PinSheng Garments co,ltd , https://www.psfsshirts.com
April 08, 2021