摘要
“小街区、密路网”的城市规划理念已成为共识,其对交通噪声的影响有待探究。基于交通微观仿真软件VISSIM,选取大连典型城市片区,保持交通总量不变,进行现状路网增加路段以及连接断头路路网等的交通噪声动态模拟,分别对应“大街区、疏路网”“小街区、密路网”两种街区模式,对比噪声差异。研究发现,“密路网”会使空间整体平均噪声级LAeq呈上升趋势,噪声波动幅度LA10-LA90呈上升趋势;噪声显著变化的区域与路段增加区域并不完全一致,这意味着交通噪声控制需将路网视作整体研究。该研究成果可供城市规划管理及设计者参考。
The urban planning concept of“small blocks,dense road network”has become a consensus,and its impact on traffic noise needs to be explored.Based on the traffic micro simulation software VISSIM,this paper selects the typical urban area of Dalian,keeps the total traffic volume unchanged,and carries out the dynamic simulation of the traffic noise of the existing road network,such as increasing road sections and connecting the dead end road network,respectively corresponding to the two block modes of“street area,sparse road network”,“small block,dense road network”,and compares the noise differences.The study found that the“dense road network”will increase the overall average noise level LAeq of the space,and the noise fluctuation range LA10-LA90 will increase;the area where the noise changes significantly is not exactly the same as the increase area of the road section,which means that traffic noise control needs think of the road network as a holistic study.The research results can be used as reference for urban planning management and designers.
作者
李孟怡
路晓东
刘家灿
谢庄秀
LI Mengyi;LU Xiaodong;LIU Jiacan;XIE Zhuangxiu(School of Architecture and Fine Arts,Dalian University of Technology,Dalian 116000,China;State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China)
出处
《电声技术》
2021年第5期5-9,共5页
Audio Engineering
基金
国家自然科学基金“基于规划要素影响机制的交通噪声预估方法及规划管控研究”(No.51878110)
国家自然科学基金“基于广义短距出行--用地效用优化的街区制路网规划方法研究”(No.51778099)。
关键词
城市规划
街区
交通噪声
交通微观仿真
urban planning
block
traffic noise
traffic micro-simulation
