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为了进一步加深高速公路隧道群的运营安全设计,需要对隧道群进行区段划分。基于隧道群区别于普通单隧道的特点,提出了基于隧道照明特性对驾驶员视觉的影响以及隧道群在防灾方面的特殊性质,对高速公路隧道群进行了“三区段”划分。隧道群交通事故的区段划分,基于隧道照明特点,研究了隧道群对在其中行驶的驾驶员的心理和生理上的影响,提出了基于驾驶员视觉特性“三过程”的极限距离;另结合隧道群防灾特点,提出了基于防灾特征的隧道群极限距离。根据以上研究,考虑到隧道照明特点,根据驾驶员在隧道群行驶的光线明、暗适应过程的视觉特性,提出了高速公路隧道群交通事故划分的三区段准则,给出了建议值,并将该区段划分应用于工程实际,可为类似工程提供参考。
In order to further deepen the operational safety design of expressway tunnel group, the tunnel group needs to be divided into sections. Based on the difference of tunnel group from common single tunnel, this paper proposed the tunnel driver’s vision based on the tunnel lighting characteristics and the special nature of the tunnel group in disaster prevention, and divided the expressway tunnel group into three sections. Based on the characteristics of the tunnel lighting, this paper studies the psychological and physiological effects of the tunnel group on the driver who travels in it, and puts forward the limit distance based on the driver ’s visual characteristics “three processes ”. Combined with the characteristics of tunnel disaster prevention, this paper proposes the limit distance of tunnel group based on disaster prevention features. According to the above research, taking into account the characteristics of tunnel lighting, according to the visual characteristics of light and dark adaptation process of light traveling in tunnel group, a three-section criterion for traffic accident classification of expressway tunnel group is proposed, and the recommended values are given. The division of the division applied to the actual project can provide a reference for similar projects.