A METHOD FOR ESTIMATING TRAFFIC VOLUME USING BLUETOOTH DETECTION
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- TSUBOTA Takahiro
- 愛媛大学 大学院理工学研究科
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- YOSHII Toshio
- 愛媛大学 大学院理工学研究科
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- SHIRAYANAGI Hirotoshi
- 愛媛大学 大学院理工学研究科
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- FUJII Hiroshi
- 株式会社オリエンタルコンサルタンツ
Bibliographic Information
- Other Title
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- Bluetooth検知技術を活用した交通量推定
Abstract
This study develops a traffic volume estimation method using Bluetooth MAC addresses collected by several scanners. Bluetooth MAC addresses are randomly detected by a scanner at a detection rate from Bluetooth Equipped Vehicles (BEV) in traffic. The BEVs are also considered as random samples in traffic, which appear at an equipment rate. Therefore, Bluetooth MAC addresses are random samples from traffic retrieved through the two-step sampling. The number of Bluetooth MAC addresses collected by a single scanner is a random variable, not an expected value, and thus it is not appropriate to estimate the traffic volume by simply expanding the number of the MAC addresses. The proposed method in this study estimates traffic volume of a road section by utilising the number of MAC addresses collected by several scanners, each of which has the same detection rate. The method assumes that the number of MAC addresses detected within a time interval follows the Poisson distribution. Then, the traffic volume is estimated so that the likelihood of the observation by the scanners is maximised. The verification by a field data set showed that the proposed method was able to estimate the traffic volume with around 10% error rate.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management)
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Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management) 74 (5), I_1283-I_1289, 2018
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390845713038121984
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- NII Article ID
- 130007555998
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- ISSN
- 21856540
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed