基于HNAC-FD的高速公路网应急疏导措施效用评估

doi:10.16265/j.cnki.issn1003-3033.2023.07.0829

中国安全科学学报 ›› 2023, Vol. 33 ›› Issue (7): 222-229.doi: 10.16265/j.cnki.issn1003-3033.2023.07.0829

基于HNAC-FD的高速公路网应急疏导措施效用评估

刘星良¹(), 谢厅¹, 刘唐志¹^,^**(), 尚婷¹, 王建²

¹ 重庆交通大学交通运输学院,重庆 400074
² 东南大学交通学院,江苏南京,211189

收稿日期:2023-02-25 修回日期:2023-05-10 出版日期:2023-07-28
通讯作者:
^** 刘唐志(1976—),男,江西吉安人,博士,教授,主要从事道路交通安全、智慧交通、应急救援等方面的研究。E-mail:liutangzhi@cqjtu.edu.cn。
作者简介:
刘星良 (1989—),男,陕西西安人,博士,讲师,主要从事交通安全、交通流理论、交通风险评估等方面的研究。E-mail: xingliang1125@outlook.com。
尚婷,副教授
王建,研究员
基金资助:
国家重点研发计划项目(2021YFB1600100); 重庆市自然科学基金面上项目(CSTB2022NSCQ-MSX0519); 重庆市高校创新研究群体项目(CXQT21022)

Evaluate effectiveness of emergency evacuation measures in expressway network based on HNAC-FD model

LIU Xingliang¹(), XIE Ting¹, LIU Tangzhi¹^,^**(), SHANG Ting¹, WANG Jian²

¹ School of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China
² School of Transportation, Southeast University, Nanjing Jiangsu 211189, China

Received:2023-02-25 Revised:2023-05-10 Published:2023-07-28

摘要/Abstract

摘要：

为安全有效地疏散突发事件造成的高速公路网拥堵,评估不同应急疏导措施的效用,首先,分析突发事件下高速公路网拥堵传播消散规律,基于提出的高速公路节点容纳能力(HNAC),结合基本图(FD)模型,建立HNAC-FD消散计算模型;然后,根据疏散案例交通流数据,使用Vissim软件搭建仿真模型,仿真分析不同疏导措施对疏散交通流速度的影响,并利用Logistic速密模型计算路网各个区段的交通流状态;最后,根据高速公路网突发事件案例,设计不同疏导措施方案,并通过HNAC-FD模型计算拥堵消散时间,从事件影响消散时间和拥堵队列车辆平均行程时间,评估不同疏导方案的效用。结果表明:疏导措施会延迟事件影响消散,但能提升疏散交通流的速度,减少拥堵队列的车辆平均行程时间,且组合方案的疏散效果与单一措施差别不显著;可逆车道具有最佳疏散效果。

关键词: 高速公路节点容纳能力(HNAC), 基本图(FD)模型, 高速公路网, 应急疏导措施, 效用评估, 突发事件

Abstract:

This paper aimed to safely and effectively evacuate the expressway network congestion caused by emergency events and to evaluate the effectiveness of different emergency evacuation measures. Firstly, the propagation and dissipation law of expressway network congestion under emergency events were analysed, and the HNAC-FD dissipation calculation model was established. Secondly, through evacuation case traffic data, the effect of different interventions on the speed of traffic flow was simulated by Vissim, and the traffic flow state of the expressway network section was obtained based on the Logistic speed-density model. Finally, according to the case of expressway network emergencies, different intervention measures were designed, and the congestion dissipation time was calculated by the HNAC-FD model. The effectiveness of different measures was evaluated from the event impact dissipation time and the average travel time of the vehicles in the congested queue through case numerical calculations. The results show that the intervention measures delay the dissipation of the event impact, but improve the speed of evacuating traffic flow and reduce the average travel time of the congested queue. The evacuation effect of the combined measures is not significantly better than that of the single one, and the reversible lane evacuation works best.

Key words: highway node acceptance capacity (HNAC), fundamental diagram(FD) model, expressway network, emergency evacuation measures, evaluate effectiveness, emergency events

刘星良, 谢厅, 刘唐志, 尚婷, 王建. 基于HNAC-FD的高速公路网应急疏导措施效用评估[J]. 中国安全科学学报, 2023, 33(7): 222-229.

LIU Xingliang, XIE Ting, LIU Tangzhi, SHANG Ting, WANG Jian. Evaluate effectiveness of emergency evacuation measures in expressway network based on HNAC-FD model[J]. China Safety Science Journal, 2023, 33(7): 222-229.

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高速公路单向车道数	阻塞1条车道	阻塞2条车道	阻塞3条车道
2	35	0	—
3	49	17	0
4	58	25	13

重车混入率/%	双向4车道/ (km·h^-1)		双向6车道/ (km·h^-1)		双向8车道/ (km·h^-1)
重车混入率/%	不开放	开放	不开放	开放	不开放	开放
10	77.9	79.5	80.6	82.0	78.7	80.7
20	78.4	80.7	81.9	83.4	80.0	81.4
30	77.4	79.3	79.6	81.1	78.5	80.3
40	76.9	78.8	78.2	80.2	78.1	78.6

重车混入率/%	双向4车道/ (km·h^-1)		双向6车道/ (km·h^-1)		双向8车道/ (km·h^-1)
重车混入率/%	不限制	限制	不限制	限制	不限制	限制
10	72.6	77.8	76.1	81.7	74.2	83.8
20	71.2	78.8	71.8	81.6	72.4	83.0
30	69.4	78.0	71.2	80.1	71.5	81.4
40	69.2	76.6	70.0	78.0	69.7	80.0

路网区段	长度/ km	流率/ (veh·h^-1)	车道数	重车混入率/%
路段1	11.7	1540	2	25
路段2	5.6	1100	2	25
路段3	6.9	1100	2	25
路段4	12.7	630	3	5
路段5	5.0	320	2	5
路段6	8.3	430	4	10
路段7	12.6	1830	4	10
匝道Z1	0.9	600	2	20
匝道Z2	0.6	240	1	25
匝道Z3	0.7	75	1	5
匝道Z4	1.0	80	1	5
匝道Z5	0.7	63	2	2
匝道Z6	1.3	101	2	3
节点1	1.1	940	2	25
节点2	0.4	980	2	25

疏导措施	实施方式	拥堵队列平均行程时间/h
疏导措施	实施方式	路段1—3	路段4
布设可逆车道	长度0 km	0.242	0.1
	长度2 km	0.195	0.1
	长度4 km	0.187	0.1
	长度6 km	0.182	0.1
	长度8 km	0.180	0.1
	长度10 km	0.178	0.1
	长度12 km	0.178	0.1
开放应急车道	不开放	0.242	0.1
	方案1	0.228	0.1
	方案2	0.220	0.1
	方案3	0.212	0.1
	方案4	0.212	0.093 5
重车限制	不实施	0.242	0.1
重车限制	实施	0.218	0.094 0
组合策略	无措施	0.242	0.1
	组合方案1	0.205	0.1
	组合方案2	0.209	0.094 0

基于HNAC-FD的高速公路网应急疏导措施效用评估

Evaluate effectiveness of emergency evacuation measures in expressway network based on HNAC-FD model

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