Performance Optimization and Scaling for Simulations of Urban Planning**

黑弧公司是一家公民技术公司，主要致力于以“视频游戏”的形式将真实的城市区域可视化。他们提供了一个名为CitiSketch的工具，可以将整个社区可视化，以解决公民问题。这项技术模拟城市规划决策的“场景”，并实时呈现其影响。例如，学校在特定地区的位置可以产生不同的交通模式。有了这个模拟模型，就可以解决和可视化对市民日常生活的影响，也可以决定对社区产生最积极影响的地点。为了实现这一点，软件将城市中的个人建模为独立的代理，像现实生活中的人一样履行职责/活动。该软件目前显示了人口超过1万人的城镇的不同规划策略。对于较大的人口，由于大量独立行动的代理及其所需的后续计算工作负载，该工具的性能会下降。模拟需要类似生命的代理来模拟人；因此，人口规模反映了智能体的数量，智能体反映了计算需求，限制了城市规模。总的来说，该软件有规模问题需要解决，以使其适用于任何人口规模的城市地区。

The Black Arcs Inc. is a civic technology company with their main focus on the visualization of real urban areas in a "video-game" format. They provide a tool called CitiSketch that visualizes whole communities in order to address civic issues. This technology simulates "scenarios" on urban planning decisions and presents the impacts in real-time. For example, the location of a school in a specific region can produce different traffic patterns. With this simulation model, it becomes possible to address and visualize the impacts on the every day life of the citizens and also, decide the location that will have the most positive impact to the community. To achieve this, the software models individual people in the city as independent agents that perform duties/activities as a person would in real-life. The software currently shows different planning strategies for towns with populations up to 10,000 people. For larger populations, the tool suffers from performance degradation due to the large number of agents that are acting independently and the subsequent computing workload it requires. The simulation requires life-like agents to model people; therefore population size reflects the number of agents, which reflects the computing demand and limits the city size. Overall, the software has scaling issues that need to be addressed and resolved in order to make it applicable for urban areas of any population size.