Study on the Impact of Urban Road Network on Commercial Layout – a Case Study of Chengdu

Urban road network form and commercial layout play an important role in urban development, the study of the relationship between the two can provide support for urban commercial functional area layout, road planning and commercial planning of government departments. Taking the inner city of the Third Ring Road of Chengdu as an example, this study quantitatively analyzed the correlation between road network form and retail layout by using spatial syntax and GIS spatial analysis. The results show that: (1) the distribution of different retail businesses extends from east to west, which is consistent with the distribution direction of road network. (2) The road network with high global integration degree is mainly concentrated in one ring, which has high accessibility, centrality and strong crowd gathering ability. At the same time, the integration degree of the four axes of northwest, northeast, southwest and south of the First ring center is also high, which is basically consistent with the axial development of Chengdu in recent years. (3) Road connection value and control value have a high impact on commercial outlets, especially for convenience stores and supermarkets. At the same time, the impact of road depth on retail layout is relatively low. Overall, in terms of road planning, emphasis should be placed on the coordination of urban road connection values and control values, so as to alleviate traffic pressure while promoting the further development of retail commerce.