高密度高负荷小间距互通立交区安全评价方法 及改善措施研究 许甜1,邓涵月,骆中斌!,马小龙1 1.中文第一公路勘察设计研究院有限公司,陕西西安710065) 摘要:针对高密度高负荷小间距互通立交区交通冲突率较高、驾驶负荷较重等问 题,本文从道路因素、交通流因素以及驾驶员视觉特性入手,提岀了基于微观仿真 交通冲突分析技术和驾驶模拟视觉特性分析技术的交通安全评价方法。并以深外环 高速公路典型的小间距互通群为实例,通过仿真场景构建、交通冲突分析、驾驶模 拟试验等进行交通安全性评价。最后,以“快进缓出”为设计理念,针对性的提出了 距互通立交区组合式标志标线设置方法,旨在提升交通标志的视认性,减轻驾 驶员的驾驶负荷,实现互通立交交织区交通流有效诱导、快逴分流。本硏究可为高 密度高负荷小间距互通区的安全评价、标志标线优化方法提供技术支撑。 关镳词:小间距互通;安全评价;冲突率;视觉特性分析;标志标线优化 中图分类号:U238 Safety Evaluation Method of small Spacing Interchange under High-density and Heavy traffic Flow and Improvement Measures Xu Tian, Deng han-yue, Luo Zhong-bin, Ma Xiao-lo (1. CCCC First Highway Consultants CO, LTD. Xian, 710065) Abstract: In order to study the safety of high-density, high-load and small-pitch intercommunication zones, considering the road factor, traffic flow, and the driver visual characteristic, this paper proposes a safety evaluation method based on microscopic alysis technology and driving simulation visual analysis technology to solve the problem of traffic conflict, the driver's visual load and the rationality of the flag setting. The feasibility and effectiveness of the above method is verified by using the Shenwaihuan Highway typical road sections as an example. Finally, with the concept of fast-forward and slow-out" a new method of setting the combination road traffic signs and marking for small-pitch interchange is proposed. This study can provide technical support for the safety evaluation and marking line optimization method of high-density, high-load and mall-pitch intercommunication zones 基金项目:道路交通安全主动防控技术及系统集成项目(编号:2017YFC0803900) (c)1994-2019ChinaAcademicJournalElectronicpUblishingHouse.Allrightsreservedhttp://www.cnki.net高密度高负荷小间距互通立交区安全评价方法 及改善措施研究1 许甜 1，邓涵月 1，骆中斌 1，马小龙 1 （1. 中交第一公路勘察设计研究院有限公司，陕西 西安 710065） 摘 要： 针对高密度高负荷小间距互通立交区交通冲突率较高、驾驶负荷较重等问 题，本文从道路因素、交通流因素以及驾驶员视觉特性入手，提出了基于微观仿真 交通冲突分析技术和驾驶模拟视觉特性分析技术的交通安全评价方法。并以深外环 高速公路典型的小间距互通群为实例，通过仿真场景构建、交通冲突分析、驾驶模 拟试验等进行交通安全性评价。最后，以―快进缓出‖为设计理念，针对性的提出了 小间距互通立交区组合式标志标线设置方法，旨在提升交通标志的视认性，减轻驾 驶员的驾驶负荷，实现互通立交交织区交通流有效诱导、快速分流。本研究可为高 密度高负荷小间距互通区的安全评价、标志标线优化方法提供技术支撑。 关键词： 小间距互通；安全评价；冲突率；视觉特性分析；标志标线优化 中图分类号：U238 Safety Evaluation Method of Small Spacing Interchange under High-density and Heavy Traffic Flow and Improvement Measures Xu Tian1 , Deng han-yue 1 , Luo Zhong-bin1 , Ma Xiao-long1 (1. CCCC First Highway Consultants CO., LTD. Xi’an, 710065) Abstract: In order to study the safety of high-density, high-load and small-pitch intercommunication zones, considering the road factor、traffic flow、and the driver visual characteristic, this paper proposes a safety evaluation method based on microscopic simulation traffic conflict analysis technology and driving simulation visual analysis technology to solve the problem of traffic conflict, the driver's visual load and the rationality of the flag setting. The feasibility and effectiveness of the above method is verified by using the Shenwaihuan Highway typical road sections as an example. Finally, with the concept of ―fast-forward and slow-out‖, a new method of setting the combination road traffic signs and marking for small-pitch interchange is proposed. This study can provide technical support for the safety evaluation and marking line optimization method of high-density, high-load and small-pitch intercommunication zones. 基金项目：道路交通安全主动防控技术及系统集成项目（编号：2017YFC0803900）