## 1 Introduction  
The rapid global urbanization, which is projected to exceed 60% by 2030, is leading to profound adjustments in cities' industrial structures and posing challenges to urban development. As cities adapt to these transformations, the role of commercial activities in reshaping urban space becomes increasingly significant. A well-designed commercial area not only fuels economic development but also meets residents' consumption needs while enhancing their comfort and happiness. Therefore, it is of utmost importance to simulate and optimize the expansion of urban commercial space for effective urban planning. Effective commercial areas integrate diverse facilities and services that are accessible and beneficial to the community, contributing to vibrant urban life. Therefore, the simulation and optimization of urban commercial space expansion are essential for strategic urban planning. This process helps planners and developers to predict and respond to the dynamic needs of urban populations, ensuring that commercial developments are sustainable, equitable, and conducive to economic prosperity. In light of these challenges, it is crucial to develop tools and methodologies that can accurately model and optimize commercial space layouts in urban settings. The integration of advanced technologies, such as artificial intelligence and geographic information systems, into urban planning processes allows for more precise and efficient planning. By utilizing data-driven approaches, urban planners can create more adaptive and responsive urban environments that not only meet current needs but are also scalable for future demands. In a rapidly changing world, understanding the significance of commerce in cities goes beyond economic prosperity; it is about shaping livable and business-friendly urban environments that create more opportunities and benefits for residents. Through in-depth research and comprehensive analysis, we can discover that a rational layout of commercial space not only promotes sustainable urban development but also strengthens community cohesion and improves residents' quality of life. Through rigorous, in-depth research and comprehensive analysis, urban planners and developers can uncover the profound impacts that a well-thought-out commercial space layout has on a city's overall ecosystem. A rational layout of commercial spaces not only boosts sustainable urban development by making efficient use of land and resources but also plays a crucial role in enhancing community cohesion. Such planning ensures that commercial areas are accessible, culturally inclusive, and economically viable, which, in turn, fosters a sense of belonging among residents. The planning and development of commercial areas must take a holistic approach that prioritizes social and environmental sustainability. This involves not just the integration of innovative architectural designs and diverse commercial offerings but also a commitment to creating spaces that foster community engagement and support the local economy. By emphasizing innovation and diversity, urban planners can provide cities with a broad spectrum of choices and opportunities that cater to a variety of tastes and needs. The variety not only enriches the urban experience but also attracts a diverse array of visitors and residents, enhancing the city's cultural fabric and economic vitality. Therefore, research on the effective planning and optimization of urban commercial space holds significant meaning. It not only drives sustainable urban development but also creates more livable and prosperous urban environments, leading to greater well-being and happiness in people's lives. Effective commercial planning involves strategic site selection, thoughtful design, and the integration of amenities that enhance public life. By focusing on accessibility and human-scale developments, these areas become more than just places of commerce--they become central hubs for community activity and engagement.