The Research in the Noise Model of Grade Separation Bridge

• Main Authors: Liao Ching Pin, 廖景彬
• Other Authors: Shu Yuan Jing
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/42644095417946996630

碩士 === 國立交通大學 === 交通運輸研究所 === 82 === Grade Separation Bridge is usually one of the ways adopted by Highway Administration to resolve traffic bottlenecks. But due to the physical feature of the bridge structure, the citizen living close to bridges are seriously interfered in their daily life, commercial behavior and even privacy. Especially, the height variation of bridges influences on the changes of driving behavior, so noice volumn is varied simultane- ously. Therefore, because of the relations of various factors, the noise problem of bridge reveals more specifically its lity. This research is done especiall according to the of bridge structure. After figuring out the mean deviation of experience value about real cases noise volumn data, we will able to use the bridge noise model led to infer and get the chart of equal equivalent sound pressure leuel of the horizontal, vertical section and cross section at any point of the bridge by inputting bridge structure data and traffic data.( including all kinds of vehicles, their volumn in all directions and aeverage speed) To do so, we will be able to understand the distribution state of all points along the bridge nearby. Besides, it also could provide the reference value in noiseproof.