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Title: Low-cost traffic sensing system based on LoRaWAN for urban areas
Authors: Pasandi, Hannaneh Barahouei
Haqiqat, Asma
Moradbeikie, Azin
Keshavarz, Ahmad
Rostami, Habib
Paiva, Sara
Lopes, Sérgio Ivan
Keywords: RSSI
Traffic sensing
Smart cities
Issue Date: 2022
Publisher: ACM
Citation: Pasandi, H. B., Haqiqat, A., Moradbeikie, A., Keshavarz, A., Rostami, H., Paiva, S., & Lopes, S. I. (2022). Low-cost traffic sensing system based on LoRaWAN for urban areas. In EmergingWireless ’22: Proceedings of the 1st International Workshop on Emerging Topics in Wireless, December 9, 2022, Italy (pp. 6-11). ACM.
Abstract: The advent of Low Power Wide Area Networks (LPWAN) has enabled the feasibility of wireless sensor networks for environmental traffic sensing across urban areas. In this study, we explore the usage of LoRaWAN end nodes as traffic sensing sensors to offer a practical traffic management solution. The monitored Received Signal Strength Indicator (RSSI) factor is reported and used in the gateways to assess the traffic of the environment. Our technique utilizes LoRaWAN as a long-range communication technology to provide a large-scale system. In this work, we present a method of using LoRaWAN devices to estimate traffic flows. LoRaWAN end devices then transmit their packets to different gateways. Their RSSI will be affected by the number of cars present on the roadway. We used SVM and clustering methods to classify the approximate number of cars present. This paper details our experiences with the design and real implementation of this system across an area that stretches for miles in urban scenarios. We continuously measured and reported RSSI at different gateways for weeks. Results have shown that if a LoRaWAN end node is placed in an optimal position, up to 96% of correct environment traffic level detection can be obtained. Additionally, we share the lessons learned from such a deployment for traffic sensing.
ISBN: 978-145039934-0
Appears in Collections:ESTG - Artigos indexados à WoS/Scopus

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