Landway transportation accessibility based on decision tree——taking Zhejiang province as example

This article took Zhejiang Province as the study area,using decision tree to research the correlation model between accessibility and geography factors.The main contents were as followings: firstly,geography factors were extracted which mainly included elevation,slope,roughness,curvature and land use type;the accessibility of city nodes were measured using the gravitational model based on negative exponent function,and then accessibility surface was constructed using Kriging interpolation;secondly,sampling data were obtained using sampling method and then training sets were constructed;finally,J48 decision tree was used to study the training sets.The results indicated that the decision tree technology could explain the correlation pattern between the accessibility and the geography factors well.