关中城市群高速公路与新型城镇化体系的空间耦合发展分析

Analysis on the Spatial Coupling Development of Expressway and New Urbanization System in Guanzhong City Group

以关中城市群为例,构建高速公路与新型城镇化测评体系,针对高速公路布局与新型城镇化发展之间的交互关系,借鉴耦合度函数提出高速公路与新型城镇化进程的耦合协调度计算模型,应用此模型研究关中城市群2013年~2017年新型城镇化发展和高速公路之间的耦合现状。在此基础上,选取关中城市群高速公路与新型城镇化相关指标数据作为训练样本,引入径向基函数(RBF)神经网络模型对2018年~2020年的空间耦合协调态势进行拟合验证并预测。结果显示:关中城市群高速公路与新型城镇化系统的耦合协调度呈现普遍上升态势,但整体仍处在较低发展水平,存在较大的发展空间。

Taking Guanzhong urban agglomeration as an example,the evaluation system for highway and new-type urbanization is constructed.Aiming at the interaction relationship between highway layout and new urbanization development,the coupling degree function model is used to propose a model for calculating the degree of coupling and coordination between the highway and new-type urbanization.This model is used to study the current status of coupling between new urbanization development and expressways in Guanzhong urban agglomeration from 2013 to 2017.Based on this,Guanzhong urban agglomeration expressway and new urbanization-related index data are selected as training samples,and a radial basis function(RBF)neural network model is introduced to fit,verify and predict the spatial coupling coordination situation from 2018 to 2020.The results show that the degree of coupling and coordination between the expressways of Guanzhong urban agglomeration and the new urbanization system is generally on the rise,but the overall development is still at a low level,and there is huge development space.