城市形态发生的多尺度模型
A multiscale model of urban morphogenesis
摘要：
城市形态发生的动力学和过程是城市系统长期可持续性的核心问题。然而，它们同时涉及多个时间和空间尺度的利益攸关方和参数，导致各层面和尺度之间的复杂互动。本文从理论的角度介绍了一个简单的基于主体的城市形态发生模型，该模型以城市区域为尺度，具有微观和中观尺度相结合的特点。在地方一级，开发商代理人推动城市发展，其条件是当地的房地产，但也是一个较小规模的基础设施网络。网络的演化速度更慢，遵循全局属性。可持续性指标，包括模式的份额和城市密度建议应用该模型的多目标优化。最后，我们讨论了可能的实现，扩展和应用的模型。
英文摘要：
The dynamics and processes of urban morphogenesis are a central issue regarding a long-term sustainability of urban systems. They however imply stakeholders and parameters at multiple temporal and spatial scales simultaneously, leading to intricate interactions between dimensions and scales. We introduce in this paper from a theoretical viewpoint a simple agent-based model of urban morphogenesis at the scale of an urban area, with the feature of integrating the microscopic and the mesoscopic scales. At the local level, developer agents drive urban development conditioned by local properties but also an infrastructure network at a smaller scale. The network evolves more slowly following global properties. Indicators of sustainability including modal shares and urban density suggest an application of the model to multi-objective optimisation. We finally discuss possible implementation, extensions and applications of the model.
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