城市道路网结构形式的评价

Evaluation of structural types of urban road network

选择了非直线系数、路网可达性和路网连结度3个评价指标对方格网式、环形放射式、自由式、混合式4种基本路网形式进行了对比分析与评价.由评价结果可知,各种路网形式各有优缺点,在道路网结构形式选择时,较为理想的路网形式为环形放射式和混合式.

This article carries out contrastive analysis and evaluation of four kinds of basic urban road network structure type including check network, circle emanation network, freely network, mixed network with three assessment indexes including the non-line coefficient, accessibility of road network, connective degree of road network. According to the results of evaluation, every kind of road network structure has its own virtues and shortcomings. Therefore, the reasonable structure types of road network are circle emanation network and mixed network when choosing the structure type.