Structural Characteristics and Formation Mechanisms of Ancient Canal Villages and Towns Based on Spatial Perception—The Case of Pushi in Western Hunan, China

The spatial configuration of historical canal villages and towns is crucial to their overall structural framework. Moreover, it serves as a fundamental element in the manifestation of architectural style, the promotion of vitality, and the enhancement of environmental conditions. This study used Google Maps and field research to examine the spatial perception of Xiangxi Pushi Ancient Town by analyzing node space, street space components, and visual data. It investigates the spatial structure characteristics of ancient canal villages and towns at three levels: point-like space, line-like space, and point-line association. Furthermore, this study evaluates these characteristics based on three perspectives: macroscopic, mesoscopic, and microscopic. The text subsequently elucidates its formation mechanism, along with the cultural aspects of watersheds following the construction of canals. The results showed that the point space of Pushi Ancient Town is relatively complete; however, the overall structure is loose, and the core is not strong. The linear space utilizes the main street as its framework, while certain internal and external streets and lanes have isolation and insufficient connectivity. Simultaneously, some important nodes are marginalized, and the connectivity and overall synergy between the point and line spaces require improvement. This study provides a theoretical foundation and practical reference for examining the sustainable development of villages and towns, as well as watershed culture in the post-canal era.