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Title	Toward Efficient Urban Emergency Response Using Uavs Riding Crowdsourced Buses
ID_Doc	57677
Authors	Gao J.; Wang Q.; Li Z.; Zhang X.; Hu Y.; Han Q.; Pan Y.
Year	2024
Published	IEEE Internet of Things Journal, 11, 12
DOI	http://dx.doi.org/10.1109/JIOT.2024.3382120
Abstract	Unmanned aerial vehicles (UAVs) are widely applied in smart city applications such as urban sensing and delivery, due to the UAVs' agility, low cost and not being restricted by ground road conditions. However, the limited battery capacity becomes one of the biggest obstacles to the application of UAVs. To address this issue, this article investigates an emergency response application, in which UAVs generally ride crowdsourced buses to save energy and respond to a stochastic emergency event (such as a traffic accident) when the event occurs. For the bus-based UAV response paradigm, a single UAV response process with the constraint of the bus mobility is first modeled. Subsequently, a data-driven UAV path planning algorithm is designed. Then two emergency response cases by multi-UAV are investigated. One case is irregular emergency response, whose objective is to maximize the temporal-spatial coverage of the urban area. The other case is predictable emergency response, which optimizes the response performance to these emergencies. Thereafter, the bus-stimulating problems for the two cases are formulated and solved. Finally, utilizing a real-world bus trajectory data set generated by a large-scale bus fleet and a traffic event data set, the emergency response performance of the bus-based UAV response paradigm is comprehensively evaluated. The results show that (1) with only 30 UAVs, 90% of Shenzhen city can be covered in the irregular emergency response case; (2) with only 50 UAVs, the average response delay to the emergencies is shorter than 1.5 min, which is 56% shorter than baselines, in the predictable emergencies response case. © 2014 IEEE.
Author Keywords	Bus-based unmanned aerial vehicle (UAV); crowdsourcing; data-driven; flight path planning; urban emergency response

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