Polycentric urban development is gaining momentum in both scholarly research and real-life practice. This brings new demand for planning support systems to simulate and analyse the urban spatial structure in terms of polycentricity under various urban policy scenarios. With the help of emerging urban data, urban simulation techniques, and network science, this study proposes a workflow to simulate the urban spatial structure with spatial interaction as a part of the planning support system. Using Singapore as a case study, this study has explored the resulting urban spatial structure with four employment distribution strategies. The results suggest that planning practices impact urban spatial structure and its spatial interaction by redistributing urban morphological elements, such as employment in this study. Also, our results show that the physical urban spatial structure and spatial interaction are closely related. These results reinforce the role of urban planning practice to achieve a more sustainable and coherent urban built environment. Through this empirical evidence, our workflow exemplifies the potential of the planning support system to help urban planners and governments understand their urban policy regarding urban polycentricity.

多中心城市发展在学术研究和现实生活中都获得了动力。这为规划支持系统带来了新的需求，以模拟和分析各种城市政策情景下多中心性的城市空间结构。借助新兴的城市数据、城市模拟技术和网络科学，本研究提出了一种工作流程来模拟具有空间交互作用的城市空间结构，作为规划支持系统的一部分。本研究以新加坡为例，探讨了由此产生的城市空间结构和四种就业分配策略。结果表明，规划实践通过重新分配城市形态元素（例如本研究中的就业）来影响城市空间结构及其空间相互作用。还，我们的研究结果表明，物理城市空间结构和空间相互作用密切相关。这些结果加强了城市规划实践的作用，以实现更可持续和连贯的城市建成环境。通过这一经验证据，我们的工作流程举例说明了规划支持系统在帮助城市规划者和政府了解他们关于城市多中心性的城市政策方面的潜力。