Conceptual model and research framework of supply and demand relationship of urban living space from the perspective of activities

The high-quality development of the supply-demand relationship in urban living space is related to the well-being of urban residents, but the imbalance and insufficiency of supply and demand contradictions still exist in the New Era. Based on this, combined with the shift towards humanization and intelligence in the field of research, and by drawing on the theories of spatio-temporal behavior and flow space, a diverse, dynamic, and interconnected perspective of activities is introduced to deepen the exploration of the supply and demand relationship of urban living space. By analyzing the connotation of the supply and demand relationship of urban living space, a conceptual model of the bottom-up translation and representation of the interactive relationship between "man and land" composed of the daily activities and the environment of urban residents is constructed. And combined with the support of multi-source geographic big data, a research framework covering key content and analysis ideas such as comprehensive evaluation, pattern recognition, mechanism revelation, and optimization mechanism is proposed. This research constructs a conceptual model and research framework from the perspective of activities, actively responding to the diverse forms of real life scenarios supported by elements such as "time, space, place, flow, virtuality, and entity". It improves the deconstruction and organizational reconstruction of the origin of the supply-demand relationship in living spaces, enriches the analysis path and comprehensive judgment of unilateral, bilateral, and systemic relationships inside and outside the supply and demand system, which provides useful insights and references for the transformation of urban living space services and governance.