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Acoustical Design and Noise Control in Metro Stations: Case Studies of the Ankara Metro System

机译:地铁车站的声学设计和噪声控制:以安卡拉地铁系统为例

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The aim of this research is to demonstrate the importance of initial strategies in acoustical design of underground metro stations. The paper searches for practical design solutions by evaluating different materials for providing optimum acoustical conditions in such spaces. Acoustical designs of three metro stations on a new expansion line in Ankara including Sogutozu, Bilkent and ODTU metro stations are presented through computer simulation. Predictions of room acoustical parameters are presented for both platform and ticket office floors in terms of parameters like reverberation time (RT), speech transmission index (STI) and A-weighted sound level (SPL) distribution within spaces. Simulated reverberation times are evaluated in view of legislative requirements. The study confirms the importance of using sound absorbing materials on the ceiling and sidewalls together. The nonwoven material, used behind perforated metal suspended ceilings, has proved effective in reverberation control.
机译:这项研究的目的是证明初始策略在地下地铁车站的声学设计中的重要性。本文通过评估不同的材料以在此类空间中提供最佳的声学条件,寻求实用的设计解决方案。通过计算机仿真,介绍了安卡拉新扩建线上的三个地铁站的声学设计,包括Sogutozu,Bilkent和ODTU地铁站。根据诸如混响时间(RT),语音传输指数(STI)和A加权声级(SPL)在空间内的分布等参数,针对平台和售票厅楼层提供了房间声学参数的预测。根据法律要求评估模拟混响时间。这项研究证实了在天花板和侧壁上同时使用吸音材料的重要性。在穿孔金属吊顶后面使用的非织造材料已证明对混响控制有效。

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