考虑交通梗塞的合流区交通状况诊断

doi:10.13229/j.cnki.jdxbgxb.20220963

摘要/Abstract

摘要：

为了从交通梗塞角度诊断合流区交通状况，以交通流breakdown概率为交通梗塞指标并提出了合流区交通状况诊断模型。基于该模型，一方面探究了模型参数的满足条件；另一方面结合控制变量法和标定后的模型探究了交通状况，同时讨论了分析结果并提出了管控策略。结果表明：车流在v较小时难以及时驶离合流区，此时q或r继续增大将增大P；车流在v较大时可及时驶离合流区，P相对较小，但随着q或r继续增大而增大；在已知交通流时，适当调整v可有助于降低P。

关键词: 交通工程, 交通状况, 交通梗塞, 合流区, 控制变量法

Abstract:

In order to diagnose the traffic situation in confluence area from the perspective of traffic infarction， a diagnosis model for traffic situation is proposed with the traffic breakdown probability as the traffic infarction indicator. Based on the proposed model， on the one hand， the satisfaction conditions of model parameters were explored， on the other hand， the traffic situation was investigated with the control variable method and the calibrated model， and the analysis results were discussed and control strategies were proposed. Results show that it is difficult for the traffic flow to leave the confluence area in time when v is small， and P increases when q or r continues to increase. The traffic flow can leave the confluence area in time when v is large， and P is relatively small， but P increases with the continuous increase of q or r. When the traffic flow is known， proper adjustment of $v$ can help reduce P.

Key words: traffic engineering, traffic conditions, traffic infarction, confluence area, control variable method

中图分类号:

U491

张鑫,胡启洲,何君,吴啸宇. 考虑交通梗塞的合流区交通状况诊断[J]. 吉林大学学报(工学版), 2024, 54(2): 478-484.

Xin ZHANG,Qi-zhou HU,Jun HE,Xiao-yu WU. Traffic condition diagnosis of confluence areas considering traffic infarction[J]. Journal of Jilin University(Engineering and Technology Edition), 2024, 54(2): 478-484.

图/表 5

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