The invention provides a micro traffic simulation method and device based on a GPU (Graphics Processing Unit), which is used for each round of simulation iteration executed in the GPU, and comprises the following steps: constructing a main chain-branch chain table of each lane of an urban road network; generating a vehicle index of each vehicle of the urban road network based on the main chain-branch chain table; simulating the traffic operation of each vehicle according to the vehicle index of each vehicle in the urban road network and the path plan of each vehicle in the urban road network acquired from the outside; wherein the vehicle index of each vehicle is used for indexing a lane to which each vehicle belongs and surrounding vehicles of each vehicle; the path planning of each vehicle is used for driving navigation of each vehicle from a given starting point to a given ending point. According to the method, the GPU is adaptively applied to microscopic traffic simulation, so that the GPU bears massive computing power required by urban-level fine-grained microscopic traffic simulation, and the efficiency of microscopic traffic simulation is greatly improved.
本发明提供一种基于GPU的微观交通模拟方法和装置,用于GPU中执行的每一轮模拟迭代,包括:构建城市道路网每一个车道的主链‑支链链表;基于主链‑支链链表,生成城市道路网每一个车辆的车辆索引;根据城市道路网每一个车辆的车辆索引和从外部获取的城市道路网每一个车辆的路径规划,模拟每一个车辆的交通运行;其中,每一个车辆的车辆索引,用于索引每一个车辆所属车道以及每一个车辆的周围车辆;每一个车辆的路径规划,为每一个车辆从给定起点到给定终点的驾驶导航。本发明适配性的将GPU用于微观交通模拟中,以使GPU承担城市级别的细粒度微观交通模拟所需的海量算力,从而大幅度提高微观交通模拟的效率。
Microcosmic traffic simulation method and device based on GPU
一种基于GPU的微观交通模拟方法和装置
2023-12-19
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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