山东半岛城市群城市交通网络水平评价

Urban Transportation Network Level Evaluation of Shandong Peninsula Urban Agglomeration

为优化山东半岛城市群交通网络结构,从交通建设度、交通运输度、交通可达性、交通服务度4个方面构建交通网络建设水平评价指标体系,利用改进的引力模型作为交通网络联系度模型对各城市间的关联度进行定量分析,搭建出山东半岛城市群交通网络联系的基本结构.研究表明:1节点层面,各城市的交通网络建设水平可以分为3个等级,整体差异性较大,济南、青岛首位性突出.2联系度层面,两两城市间的联系度呈现出明显的不均衡性和距离衰减性,联系度数值偏小的结果较多,说明大部分城市与外界交通联系不强.3网络层面,山东半岛城市群交通联系网络不健全,以济南、青岛、烟台-威海为网络中心的三足鼎立局面初步形成,胶济铁路沿线为发展主轴,处于由走廊式向多中心网络转变的发展阶段.

Aimed at optimizing the traffic network structure of Shandong Peninsula urban agglomeration,the index system of evaluation of transportation network construction level was constructed by traffic construction,traffic transportation,traffic accessibility and traffic service. Using the improved gravity model as the traffic network connection degree model,the spatial interactive strength of each city was analyzed quantitatively,so as to build the basic structure of the traffic network of Shandong Peninsula urban agglomeration. The results were as follows.Firstly,from the perspective of node level,the urban transportation network level can be divided into three levels,the overall difference is larger,and the first prominent of Jinan and Qingdao is obvious. Secondly,the spatial interactive strength results showed a clear imbalance and reducing with the distance decreases,and the cities with low spatial correlation value occupied the dominant pattern,meaning that most cites of Shangdong Peninsula urban agglomeration have a weak correlation with the outside cites. Thirdly,the transportation network level of Shandong Peninsula urban agglomeration was in the lower stage,the overall development trend showed a good transition from corridor model to multi-center network model and the network center gradually form with the node cites of Jinan,Qingdao and Yantai-Weihai.