论文标题
多尺度行人动力学的通用和密度敏感方法
A generic and density-sensitive method for multi-scale pedestrian dynamics
论文作者
论文摘要
显微镜的模拟行人动力学方法取决于对单个药物的行为及其相互作用进行建模。关于空间分辨率，显微镜模拟器要么基于连续（空间）或离散（spaceisc）方法。为了结合两种方法的优势，我们建议将空间和间隔轴整合到混合模拟模型中。这种混合方法允许模拟具有连续空间分辨率的关键区域和具有离散空间分辨率的非批判性区域的临界区域，同时在两个仿真模型之间实现一致的信息交换。我们介绍了一种通用方法，该方法为耦合时间步骤和空间分辨率耦合所带来的挑战提供了一致的解决方案。此外，我们提出了一种动态和密度敏感的方法，可在模拟过程中检测密集区域。如果检测到关键区域，则将在该区域中使用的仿真模型动态切换到空间连续区域。通过与已建立的模拟器进行比较来评估混合模型的正确性。通过与标准微观模拟的运行时比较显示了其出色的计算效率。
Microscopic approaches to the simulation of pedestrian dynamics rely on modelling the behaviour of individual agents and their mutual interactions. Regarding the spatial resolution, microscopic simulators are either based on continuous (SpaceCont) or discrete (SpaceDisc) approaches. To combine the advantages of both approaches, we propose to integrate SpaceCont and SpaceDisc into a hybrid simulation model. Such a hybrid approach allows simulating critical regions with a continuous spatial resolution and uncritical ones with discrete spatial resolution while enabling consistent information exchange between the two simulation models. We introduce a generic approach that provides consistent solutions for the challenges resulting from coupling diverging time steps and spatial resolutions. Furthermore, we present a dynamic and density-sensitive approach to detect dense areas during the simulation run. If a critical region is detected, the simulation model used in this area is dynamically switched to a space-continuous one. The correctness of the hybrid model is evaluated by comparison with a established simulator. Its superior computational efficiency is shown by runtime comparison with a standard microscopic simulation.on with the simulation results of other, well-established simulation models.
