The purpose of OD investigations is to make statistical estimation of the average value of the samples based on the OD data obtained.
OD调查的目的是利用调查所得的OD数据对样本总体的均值作出统计推断。
Based on the above reliability analysis of road section and intersection, the paper calculates all od pair subsystems reliability index value using GO methodology.
然后在对路段和交叉口的运行可靠性分析的基础上，结合GO法来得到路网中各OD对子系统的可靠性指标值。
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