考虑礼让行人的信号交叉口配时优化方法

任耀; 张锐; 贾倩楠

doi:10.3963/j.jssn.1674-4861.2022.01.006

考虑礼让行人的信号交叉口配时优化方法

doi: 10.3963/j.jssn.1674-4861.2022.01.006

任耀^{1, 2,},
张锐^1, ,,
贾倩楠¹

1.
长安大学运输工程学院西安 710064
2.
西华大学汽车与交通学院成都 610039

基金项目:

国家重点研发计划项目 2018YFB1601300

陕西省自然科学基础研究计划项目 2020JQ-397

陕西省自然科学基础研究计划项目 2020JQ-370

陕西省自然科学基础研究计划项目 2020JQ-374

详细信息

作者简介:
任耀（1998—），硕士研究生. 研究方向：道路交通安全. E-mail：renyoa@qq.com

通讯作者:
张锐（1991—），博士，讲师. 研究方向：交通运输规划与管理. E-mail：zhangrui@chd.edu.cn

中图分类号: U491.5+4
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- 被引次数: 0
出版历程
- 收稿日期: 2021-07-19
- 网络出版日期: 2022-03-31

A Timing Optimization Method for Signalized Intersections Considering the Courtesy Rules to Pedestrians

REN Yao^{1, 2
,},
ZHANG Rui^{1
, ,},
JIA Qiannan¹

1.
College of Transportation Engineering, Chang'an University, Xi'an 710064, China
2.
School of Automobile and Transportation, Xihua University, Chengdu 610039, China

摘要

摘要: 为提高机动车礼让行人背景下的人车通行效率，研究了基于叠加相位设计的信号交叉口配时优化方法。以西安市1个典型交叉口为例，分析机动车与过街行人冲突情况；在Webster配时模型的基础上，提出叠加相位设计与人车冲突时空分离策略相结合的信号配时优化方法，并给出行人信号早启时间、人车绿时分离设置阈值的计算方法；运用VISSIM仿真软件，对不同信号配时优化方案的效果进行验证。研究结果表明：与现状相比，所提出的配时优化方法可分别降低各类延误27.11%（车均）、22.41%（人均）、27.08%（车辆总计）、22.49%（行人总计）和26.15%（交叉口总计），减少各类污染物排放3.76%（VOC）、3.76%（CO）、3.76%（NO_x），并降低燃料消耗3.78%。该方法能有效改善信号交叉口的通行效率，缓解人车冲突。
- 交通工程 /
- 礼让行人 /
- 信号配时优化 /
- VISSIM仿真
Abstract: In order to improve the efficiency of signalized intersections under the consideration of the courtesy rules from vehicles to pedestrians, a timing optimization method based on superposition-phase is proposed. A typical intersection from Xi'an is taken as a case study. The conflicts between vehicles and pedestrians are analyzed. Based on Webster's timing model, a timing optimization model is developed, which combines superposition phase design and space-time separation strategy for reducing the conflicts between vehicles and pedestrians. In addition, the calculation methods for starting time of pedestrian phase and the threshold for adopting vehicle-pedestrian phase separation strategy are proposed. Then VISSIM simulation software is used to verify the effectiveness of the proposed signal timing optimization schemes. The simulation results show that compared to the current scheme, the scheme from the proposed timing optimization method can reduce the average vehicle delay, delay per capita, total vehicle delay, total pedestrian delay and total intersection delay by 27.11%, 22.41%, 27.08%, 22.49%, and 26.15%, respectively. In addition, it can also reduce the emissions of VOC, CO, NO_x, and fuel consumption by 3.76%, 3.76%, 3.76%, and 3.78%, respectively. The proposed method can effectively reduce the vehicle-pedestrian conflicts and improve the efficiency of traffic operation at signalized intersections.
- traffic engineering /
- courtesy rules to pedestrians /
- signal timing optimization /
- VISSIM simulation

HTML全文

图 1 文景路与凤城七路信号交叉口

Figure 1. Intersection of Wenjing road and Fengcheng 7 road

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图 2 信号交叉口现状信号配时方案

Figure 2. Current signal timing scheme of the intersection

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图 3 平峰小时各进口道车流量统计结果

Figure 3. Traffic flow of entrance lane in flat peak hours

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图 4 高峰小时各进口道车流量统计结果

Figure 4. Traffic flow of entrance lane in peak hours

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图 5 人车冲突分类

Figure 5. Pedestrian-vehicle conflict classification

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图 6 叠加相位设计方法流程

Figure 6. Superposition phase design method

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图 7 叠加相位设计方案

Figure 7. Superposition phase design scheme

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图 8 右转机动车与同相位过街行人冲突点示意图

Figure 8. Diagram of collision point between right-turning vehicle and pedestrian

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图 9 不同配时方案的交叉口通行效率

Figure 9. Traffic efficiency of different timing schemes

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图 10 不同配时方案的交叉口节能减排效果

Figure 10. Energy saving and emission reduction effects of different timing schemes

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表 1 不同时段等待过街行人数量

Table 1. Pedestrians waiting for crossing the street in different time intervals

时段	平峰	高峰
1个周期内等待过街人数/人	14	23

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表 2 礼让行人情况

Table 2. Vehicles yielding to pedestrians 单位: 辆

进口	平峰时段			高峰时段
进口	过度礼让	合理礼让	不礼让	过度礼让	合理礼让	不礼让
东进口	8	56	7	6	58	5
西进口	8	55	5	16	80	6
南进口	9	77	4	10	56	4
北进口	6	48	7	7	84	13
总计	31	236	23	39	278	28

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表 3 不同信号配时方案内容

Table 3. Specifications of different signal timing schemes

方案	说明	内容
1	现有信号配时方案	东西直(32 s)、东西左(25 s)、南直左(25 s)、南北直(32 s)、北直左(29 s), 总周期155 s
2	现有信号配时方案+行人信号早启	行人相位绿灯较机动车早开3s
3	现有信号配时方案+人车绿时分离	东西直+东西右(34 s)、东西左+东西右(25 s)、南直左+北右(25 s)、南北直+东西右(22 s)、北直左+南右(23 s)，总周期155 s
4	基于Webster配时模型的信号优化方案	东西直(46 s)、东西左(20 s)、南北直(55 s)、南北左(22 s)总周期155 s
5	基于Webster配时模型的信号优化方案+行人信号早启	行人相位绿灯较机动车早开3s
6	基于Webster配时模型的信号优化方案+人车绿时分离	东西直前23 s行人通行，后23 s右转机动车通行，东西左(20 s)，南北直(55 s)，设置右转专用相位与左转专用相位相同为22 s，总周期155 s
7	基于叠加相位设计的信号优化方案	东直左(15 s)、东西直(19 s)、西直左（15 s)、北直左(21 s)、南北直(25 s)、南直左（10 s)总周期124 s
8	基于叠加相位设计的信号优化方案+行人信号早启	行人相位绿灯较机动车早开3s
9	基于叠加相位设计的信号优化方案+人车绿时分离	东西向右转机动车在直左相位内放行15 s，东西直(19 s)，南北向右转机动车在北直左和南直左相位内分别放行21s和10 s，南北直(25 s)，总周期124s

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