Sezaki & Nishiyama Laboratory
Institute of Industrial Science / Center for Spatial Information Science in The University of Tokyo
Institute of Industrial Science / Center for Spatial Information Science in The University of Tokyo
Tomoya Kitazato, Miku Hoshino, Masaki Ito, Kaoru Sezaki
Detection of Pedestrian Flow Using Mobile Devices for Evacuation Guiding in Disaster Journal Article Open Access
In: Journal of Disaster Research, 13 (2), pp. 303-312, 2018.
Abstract | BibTeX | Tags: crowd sensing, evacuation guidance, Mobile sensing | Links:
@article{articleb,
title = {Detection of Pedestrian Flow Using Mobile Devices for Evacuation Guiding in Disaster},
author = {Tomoya Kitazato and Miku Hoshino and Masaki Ito and Kaoru Sezaki},
url = {https://www.jstage.jst.go.jp/article/jdr/13/2/13_303/_article/-char/ja},
doi = {10.20965/jdr.2018.p0303},
year = {2018},
date = {2018-03-20},
journal = {Journal of Disaster Research},
volume = {13},
number = {2},
pages = {303-312},
abstract = {In March 2011, the Great East Japan Earthquake occurred, killing approximately 20,000 people. Previous research has shown that evacuation start time and evacuation behavior are related to the disaster survival rate: immediate evacuation increases the survival rate and evacuation-disruption caused by traffic congestion decreases it. Therefore, it can be assumed that guiding people to safe locations will increase the survival rate. The detection of the human mobility flow is a key to rescuing more people, because its analysis can help determine the appropriate evacuation routes toward which people should be guided. The objective of our research is to develop a system for detecting the human mobility flows in a disaster scenario. We analyzed the requirements of human mobility flow detection for disaster evacuation guidance. In this paper, we propose a crowd sensing system that uses Bluetooth for recognizing human mobility flows. By detecting Bluetooth devices carried by pedestrians, the congestion degree can be estimated. Further, the devices’ movements can be detected by observing the received signal strength indicator (RSSI) of Bluetooth Low Energy (LE) beacons carried by pedestrians. The results of experimental evaluations of these two methods verify their usefulness. Our methods can estimate the congestion degree, as well as the velocity of walking pedestrians.},
keywords = {crowd sensing, evacuation guidance, Mobile sensing},
pubstate = {published},
tppubtype = {article}
}
北里知也, 伊藤昌毅, 瀬崎薫
クラウドセンシングによる Bluetooth を用いた人流把握の検討 Inproceedings
In: 知的環境とセンサネットワーク(ASN)研究会, pp. 193–198, 電子情報通信学会, 2017.
Abstract | BibTeX | Tags: Bluetooth, Congestion sensing, crowd sensing, Human mobility flow | Links:
@inproceedings{北里知也2017クラウドセンシングによる,
title = {クラウドセンシングによる Bluetooth を用いた人流把握の検討},
author = {北里知也 and 伊藤昌毅 and 瀬崎薫},
url = {https://www.ieice.org/ken/paper/20170721xbVm/},
year = {2017},
date = {2017-07-12},
booktitle = {知的環境とセンサネットワーク(ASN)研究会},
journal = {電子情報通信学会技術研究報告= IEICE technical report: 信学技報},
volume = {117},
number = {134},
pages = {193--198},
publisher = {電子情報通信学会},
abstract = {人々の移動軌跡を記録したデータを分析することで,美術館や博物館における来場者の行動パターンを分析したり,都市機能の分析をしたりすることができる.
しかし,人流を低コストでセンシングできる実用的な手法はない.
そこで,今回Bluetoothを用いた低コストな人流把握手法を提案する.
提案手法では,人流の大きさと方向のそれぞれを別々に取得する.
さらに,提案手法の実現可能性を確かめる2つの実験を行った.
1つ目の実験では,人流の大きさをセンシングする手法の実現可能性を確かめられた.
2つ目の実験では,人流の移動方向をセンシングする手法の実現可能性を確かめられた.
By analyzing human mobility data, we can know the activity patterns of a museum visitor, functional compositions of urban spaces, and so on.
However, there is no low-cost way to sensing human mobility easily.
Therefore, we propose the low-cost sensing system for recognizing human mobility using Bluetooth.
Our system obtains a size and a direction of human mobility separately.
Moreover, we show the feasibility of our proposal by two experiments.
The first one demonstrates the feasibility of detecting a size of human mobility.
The second one shows the feasibility of obtaining a direction of human mobility.},
keywords = {Bluetooth, Congestion sensing, crowd sensing, Human mobility flow},
pubstate = {published},
tppubtype = {inproceedings}
}