![](/images/graphics-bg.png)
A Modified Inverse Distance Weighting Method for Interpolation in Open Public Places Based on Wi-Fi Probe Data
Joint Authors
Wang, Da-wei
Li, Lu-ning
Hu, Cheng
Li, Qiang
Chen, Xiang
Huang, Pin-wen
Source
Journal of Advanced Transportation
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Urban open places with a public service function (e.g., urban parks) are likely to be populated in peak hours and during public events.
To mitigate the risk of overcrowding and even events of stampedes, it is of considerable significance to realize a real-time full coverage estimate of the population density.
The main challenge has been the limited deployment of crowd surveillance detectors in open public spaces, leading to incomplete data coverage and thus impacting the quality and reliability of the density estimation.
To remedy this issue, this paper proposes a modified inverse distance weighting (IDW) method, named the inverse distance weighting based on path selection behavior (IDWPSB) method.
The proposed IDWPSB method adjusts the distance decay effect according to visitors’ path selection behavior, which better characterizes the human dynamics in open spaces.
By implementing the model in a real-world road network in the Shichahai scenic area in Beijing, China, the study shows a decrease in the absolute deviation by 17.62% comparing the results between the new method and the traditional IDW method, justifying the effectiveness of the new method for spatial interpolation in open public places.
By considering the behavioral factor, the proposed IDWPSB method can provide insights into public safety management with the increasing availability of data derived from location-based services.
American Psychological Association (APA)
Wang, Da-wei& Li, Lu-ning& Hu, Cheng& Li, Qiang& Chen, Xiang& Huang, Pin-wen. 2019. A Modified Inverse Distance Weighting Method for Interpolation in Open Public Places Based on Wi-Fi Probe Data. Journal of Advanced Transportation،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1170125
Modern Language Association (MLA)
Wang, Da-wei…[et al.]. A Modified Inverse Distance Weighting Method for Interpolation in Open Public Places Based on Wi-Fi Probe Data. Journal of Advanced Transportation No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1170125
American Medical Association (AMA)
Wang, Da-wei& Li, Lu-ning& Hu, Cheng& Li, Qiang& Chen, Xiang& Huang, Pin-wen. A Modified Inverse Distance Weighting Method for Interpolation in Open Public Places Based on Wi-Fi Probe Data. Journal of Advanced Transportation. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1170125
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1170125