With the city's rapid development and gradual improvement of road infrastructure, urban traffic density increased year by year, the noise pollution of road traffic has become increasingly serious.
随着城市的飞速发展和道路基础设施的逐步改善，城市交通密度也逐年增加，交通噪声污染情况越来越严重。
With the development of city and improvement of road infrastructure, urban elevated road becomes the important way of interurban traffic.
随着城市的飞速发展和道路基础设施的改善，建设城市高架道路已成为国内外城市解决城市交通的重要手段。
With the development of city and improvement of road infrastructure, urban elevated road becomes the important way of interurban traffic.
随着城市的飞速发展和道路基础设施的改善，建设城市高架道路已成为国内外城市解决城市交通的重要手段。
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