Analysis of the main factors which influence the traffic noise of the city, the controlling methods of traffic noise pollution are put up.
通过分析影响城市道路交通噪声的主要因素，提出了相应的防治措施，为有效地控制道路交通噪声污染提供科学依据。
Based on analysis of present situation of traffic jam and Bridges in big cities, it is found that vehicle jam is one of influence reasons of security and durability of Bridges.
通过对大城市交通拥堵和桥梁使用现状的分析，提出桥上车辆拥堵是影响桥梁安全与耐久性的因素之一。
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