Authors: Liying Yue*, School of Social Development,East China Normal University, Kaiming Li, College of Architecture and Urban Planning,Tongji University
Topics: Business Geography, Asia, Behavioral Geography
Keywords: Spatial interaction model, Distance decay, Commercial center, Shanghai
Session Type: Paper
Presentation File: No File Uploaded
Quantitative measuring distance-decay law is helpful to understand the mechanism of spatial-behavioral interaction. There has been a controversy about the power and exponential distance-decay modes. On the basis of mobile phone signaling data in Shanghai, the gravity model is applied to verify and compare the spatial attraction attenuation model and its parameters. The results show that both power and exponential distance-decay modes have high goodness of fit, the former is just slightly 0.03 higher than the latter. Distance is still a key factor affecting the non-commuting behavior of urban residents, and distance-decay coefficient decreases with the size of commercial centers. Power-law distance-decay parameter coefficient∈[1,2], so the radiation capacity of commercial centers will be too overestimate or underestimate if given coefficient 1 or 2 is adopted. Leisure time on patronizing behavior of commercial centers cannot be ignored, the distance-decay coefficient is larger on weekday, decreasing with commercial centers scale significantly.