[1]张晓波.三岔型枢纽互通事故高发匝道的形成机制与安全提升研究*[J].中国安全生产科学技术,2022,18(2):198-205.[doi:10.11731/j.issn.1673-193x.2022.02.030]
ZHANG Xiaobo.Study on formation mechanism and safety improvement of accident-prone ramp on “T” shape hub interchange[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(2):198-205.[doi:10.11731/j.issn.1673-193x.2022.02.030]
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三岔型枢纽互通事故高发匝道的形成机制与安全提升研究*
ZHANG Xiaobo.Study on formation mechanism and safety improvement of accident-prone ramp on “T” shape hub interchange[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(2):198-205.[doi:10.11731/j.issn.1673-193x.2022.02.030]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 18
- 期数:
- 2022年2期
- 页码:
- 198-205
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2022-02-28
文章信息/Info
- Title:
- Study on formation mechanism and safety improvement of accident-prone ramp on “T” shape hub interchange
- 文章编号:
- 1673-193X(2022)-02-0198-08
- Keywords:
- interchange; hub interchange; “T” shape interchange; traffic safety; ramp; sideslip; rollover; safety improvement
- 分类号:
- X951
- 文献标志码:
- A
- 摘要:
- 为研究高速公路三岔型互通右转匝道车辆事故的发生机制，以宜宾至叙永高速公路双桥枢纽互通为对象，运用Carsim/trucksim软件建立事故匝道的三维数字模型，模拟小客车和货柜车的运行过程，设置3种不同工况，对车辆在匝道上的动力学特性进行分析。结果表明：行驶速度升高会导致匝道路段的车辆横向偏离增大，发生侧滑或侧翻的几率增加；充分制动距离是保证车辆安全通过匝道受限路段的重要因素，货车需要更长的制动距离；道路视觉环境是影响驾驶人速度选择行为的重要因素，匝道路段与高速公路主线行驶环境的高度近似，导致驾驶人选择较高的速度进入匝道，部分车辆在小半径弯道之前无法将速度降低至安全速度，进而发生事故。本文运用行车动力学仿真和驾驶人视觉手段，在驾驶行为层面分析事故的形成机制，进而提出安全提升措施，可为匝道线形设计和交通运行管理提供科学依据。
- Abstract:
- In order to study the occurrence mechanism of vehicle accidents on the right-turning ramp of “T” shape interchange of expressway,taking the Shuangqiao hub interchange of Yibin-Xuyong expressway as the research object,the Carsim/Trucksim software was used to establish a three-dimensional digital model of the accident ramp,then the operation processes of the passenger car and container truck were simulated,and the dynamic characteristics of vehicles on the ramp under different working conditions were analyzed.The results showed that the increase in driving speed would enlarge the lateral deviation of vehicles on the ramp section,and the probability of sideslip or rollover increased.The sufficient braking distance was an important factor to ensure the safety of vehicles passing through the restricted section of ramp,and the truck required the longer braking distance.The road visual environment was an important factor affecting the speed choice behavior of drivers.The driving environment of ramp section was highly similar to that of expressway mainline,which caused the drivers to choose a higher speed to enter the ramp,and some vehicles could not reduce the speed to the safe speed before the small radius bend,thus the accident occurred.By using the dynamics simulation of driving and the visual means of drivers,the formation mechanism of accidents was analyzed at the level of driving behavior,and then the safety improvement measures were proposed,which can provide scientific basis for the ramp alignment design and traffic operation management.
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相似文献/References:
[1]于志刚,徐进,王从明,等.基于实车驾驶试验的螺旋匝道小客车纵向驾驶行为研究*[J].中国安全生产科学技术,2022,18(2):206.[doi:10.11731/j.issn.1673-193x.2022.02.031]
YU Zhigang,XU Jin,WANG Congming,et al.Study on longitudinal driving behavior of passenger cars on helical ramps based on field driving test[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(2):206.[doi:10.11731/j.issn.1673-193x.2022.02.031]
备注/Memo
- 备注/Memo:
-
收稿日期： 2021-05-25
* 基金项目： 四川宜叙高速公路开发有限责任公司安全评价项目(SRIG-YXGS-19-011);中铁第四勘察设计院集团有限公司科研课题（2019K091）
作者简介： 张晓波，硕士，高级工程师，主要研究方向为道路设施设计与道路交通安全。
