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Bayesian Network Inference on Departure Time Choice Behavior

机译:贝叶斯网络对出发时间选择行为的推断

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摘要

Departure time choice behavior plays an important role in travel decision for metro passengers during morning peak hours. Different from statistical models, this paper proposed Bayesian networks (BNs) to model the departure time choices of metro passengers. The structure of BNs is learned through K2 algorithm and its parameters are estimated by maximum likelihood estimation (MLE) method using the stated preference (SP) survey data. Main results are obtained as follows: (1) passengers can accept departure earlier than usual in the range of 0-20 min; (2) passengers will prefer to choose departure earlier if they enjoy a 20% or more discount on metro fare; and (3) passengers are willing to departure at usual time with slight crowding while they prefer to departure earlier under serious crowding. These findings contribute to making strategies for passenger flow control and safety operation for metro stations.
机译:出发时间选择行为在早上高峰时段对于地铁乘客的出行决策起着重要作用。与统计模型不同,本文提出了贝叶斯网络(BNs)来模拟地铁乘客的出发时间选择。通过K2算法学习BN的结构,并使用陈述的偏好(SP)调查数据通过最大似然估计(MLE)方法估计其参数。获得的主要结果如下:(1)旅客可以在0-20分钟的范围内比平常更早地接受出发; (2)如果乘客享受地铁票价20%或更多的折扣,他们会更愿意选择较早的出发时间; (3)乘客愿意在平时稍有拥挤的情况下出发,而宁愿在严重拥挤的情况下提早出发。这些发现有助于制定地铁站的客流控制和安全运营策略。

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