Abstract Low-altitude flights of unmanned aircraft systems (UASs), such as drones, can cause substantial noise pollution in urban areas. This study aims to tackle the crucial issue of noise in UAS flight planning and analyze the feasibility of implementing low-noise urban flights at a micro level. We employ a virtual flight simulator to accurately model the UAS noise impact in realistic flights and optimize the flight path via a heuristic algorithm accordingly. The flight noise assessment incorporates a sound source modeling technique for practical UAS models and an efficient Gaussian beam tracing method for outdoor noise propagation in realistic environments. Case studies for flight simulations are conducted in a representative resident community and metropolitan area to evaluate the noise impact resulting from different flight paths. By comparing our approach with benchmark shortest-distance paths, we validate its effectiveness in significantly reducing en-route noise exposure, encompassing both instantaneous and continuous noise levels. This method holds great potential for contributing to the planning and management of urban air transport systems. It effectively mitigates noise impact, promoting quieter and more environmentally friendly UAS operations and sustainable urban transportation.


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    Title :

    Enhancing sustainable urban air transportation: Low-noise UAS flight planning using noise assessment simulator


    Contributors:
    Tan, Qichen (author) / Li, Yuhong (author) / Wu, Han (author) / Zhou, Peng (author) / Lo, Hong Kam (author) / Zhong, Siyang (author) / Zhang, Xin (author)


    Publication date :

    2024-03-11




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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