城市中心区地下道路网结构形式评价

为寻求与城市发展相适应的路网形式和城市地上、地下道路合理布局结构,以此来解决城市交通的拥挤问题,通过对国内外地下道路实例分析,结合城市道路的特点,提出了地下道路网整合的模式,并分析地下道路通行能力折减系数、地下道路网交叉口通达性系数、地下道路网可靠性系数3个评价指标,利用模糊综合评价的数学方法,得出了地下道路网整合的最...

Evaluation of structural types of urban road tunnel network for city center district in China

The structural type of urban road tunnel network is an important factor for urban development and urban traffic. The purpose of this research is to find a compatible form of urban road network and a rational distribution of structures to solve the problems in urban traffic. By case analysis of domestic and foreign constructions of urban tunnel combined with the characteristics of urban road, the integrated pattern of urban road tunnel in city center was proposed. By the analysis of the three assessment indexes including the non line coefficient, the crossing accessibility and the connective degree, the optimal integration structure of the road tunnel network was introduced by making use of mathematical fuzzy comprehensive evaluation . According to the results, grid network and circle, emanation network of ground and circularity of underground are the better structure types of road network when choosing the structural style of road tunnel network.