中文摘要：

采用基于复杂网络拓扑特征指标的评价方法对环状、方格及自由形态三种典型结构形态的路网结构进行分析研究，实验表明：在规则路网中，环状路网具有最优的路网结构，方格路网其次；基于实证路网的分析也表明路网结构形态对于交通网络的通行效率及可靠性具有较强的影响。研究成果对交通规划及路网优化等工作具有一定的参考价值。

英文摘要：

Road network effectiveness and reliability have al- ways been the key issues of transport planning. The paper pres- ents an analysis of three typical road network structures which are circular, grid and free style, respectively. Four complex net- work indices （BC, IC, CC, and SC） are used to evaluate their effectiveness and reliability. The experiment reveals that the circular structure has the optimum features among the three road network structures, followed by the grid structure. Mean- while, empirical study also shows that road network traffic per- formance is affected by the road network structure, and conges- tion would be easily caused due to some not ideally designed road network structure. The study could benefit transport plan- ning, road network design, and some related work.