The traditional travel demand model usually bases itself on the od study survey and employs a 4-step modeling process including trip generation, trip distribution, mode choice and assignment.
传统的交通需求4阶段分析模型大多基于各类出行的起讫点调查(OD调查)，建立出行生成、出行分布、出行方式选择和流量分配的4阶段预测模式。
The classification probability model of household can provide the element datum of traffic trip generation forecast which use cross classification method.
建立家庭分类概率模型，可以对使用交叉分类分析法的交通产生预测提供基础数据。
Generally speaking, a truck model includes three submodels of trip generation, trip distribution, and trip assignment.
卡车模型一般由出行发生、出行分布和出行分配这三个子模型组成。
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