【作者】 蔡铭； 陈韩杰； 马侠霖；

【Author】 Cai ming;Chen Hanjie;Ma Xialin;School of Engineering Sun Yat-sen University,Guangdong Provincial Key Laboratory of Intelligent Transportation System;

【机构】 中山大学工学院广东省智能交通系统重点实验室；

【摘要】 根据城市道路交通噪声模拟计算和噪声分布可视化的需要,提出了基于地理信息系统(GIS)和开放图形库(Open GL)的三维(3D)噪声地图研究。首先将平面噪声计算模型扩展到3D场景,建立了城市尺度的3D交通噪声计算模型;加载GIS地图的道路、建筑物等噪声计算参数,使用Open GL的3D建模和图形渲染功能,实现了噪声模拟要素的可视化交互编辑和3D噪声分布结果的渲染。不同于平面噪声地图,本研究建立了3D的交通噪声计算模型,并有效地表现了3D的噪声分布结果,可以为道路交通噪声环境评价和污染控制提供技术支持。更多还原

【Abstract】 According to the needs of urban road traffic noise simulation calculation and noise distribution visualization,the three-dimensional(3D) noise map research based on Geographic Information System(GIS) and the Open Graphics Library(Open GL) is proposed.First,an urban scale 3D traffic noise calculation model is establishedby extending planarnoise calculation model to fit 3D scene.Loading noise calculation parameters such as roads,buildings and so on from GIS map and using Open GL’s 3D modeling and graphics rendering capabilities,the visualization interactive editing of noise simulation elements and 3D noise distribution result rendering are achieved.Unlike planar noise map,this study proposes a 3D traffic noise calculation model and effectively shows the 3D noise distribution results,can provide technical support for road traffic noise environmental assessment and pollution control.更多还原