摘要
运用交通网络保留容量的概念 ,引入交通网络容量可靠性 ,分析比较了基于路段容量的网络可靠性和基于结点容量的网络可靠性 .结果表明 :基于路段的网络容量可靠性通常小于基于结点的网络容量可靠性 ,在城市街路网络容量可靠性分析中 ,应当充分考虑街路交叉口的容量 .网络保留容量拥有统一的OD结构 ,即单一的比例因子 ,如果每一个OD拥有各自的比例因子 ,交通网络容量将会更加确切地描述交通量的空间分布 ,在城市土地利用中将会有极其重要的意义 .
A reliability measure of network capacity under node capacities is introduced, using the concept of network reserve capacity, and compared with that based on link capacities. The node capacities should be considered in to the reliability analysis of urban street networks. Providing that every origin-destination (OD) pair have a uniform growth or decline in its OD demand, whereas relaxing this limitation can yield pictures regarding the spatial distribution of the demand pattern with non-uniform change, which can be especially useful in individual zone land-use development plans.
