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Urban Traffic Noise Maps under 3D Complex Building Environments on a Supercomputer
Joint Authors
Cai, Ming
Yao, Yifan
Wang, Haibo
Source
Journal of Advanced Transportation
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-09
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The complexity of the 3D buildings and road networks gives the simulation of urban noise difficulty and significance.
To solve the problem of computing complexity, a systematic methodology for computing urban traffic noise maps under 3D complex building environments is presented on a supercomputer.
A parallel algorithm focused on controlling the compute nodes of the supercomputer is designed.
Moreover, a rendering method is provided to visualize the noise map.
In addition, a strategy for obtaining a real-time dynamic noise map is elaborated.
Two efficiency experiments are implemented.
One experiment involves comparing the expansibility of the parallel algorithm with various numbers of compute nodes and various computing scales to determine the expansibility.
With an increase in the number of compute nodes, the computing time increases linearly, and an increased computing scale leads to computing efficiency increases.
The other experiment is a comparison of the computing speed between a supercomputer and a normal computer; the computing node of Tianhe-2 is found to be six times faster than that of a normal computer.
Finally, the traffic noise suppression effect of buildings is analyzed.
It is found that the building groups have obvious shielding effect on traffic noise.
American Psychological Association (APA)
Cai, Ming& Yao, Yifan& Wang, Haibo. 2018. Urban Traffic Noise Maps under 3D Complex Building Environments on a Supercomputer. Journal of Advanced Transportation،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1181600
Modern Language Association (MLA)
Cai, Ming…[et al.]. Urban Traffic Noise Maps under 3D Complex Building Environments on a Supercomputer. Journal of Advanced Transportation No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1181600
American Medical Association (AMA)
Cai, Ming& Yao, Yifan& Wang, Haibo. Urban Traffic Noise Maps under 3D Complex Building Environments on a Supercomputer. Journal of Advanced Transportation. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1181600
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1181600