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以SafeEnd为例评估路边混合能量吸收装置。

Assessing Roadside Hybrid Energy Absorbers Using the Example of SafeEnd.

作者信息

Budzynski Marcin, Jamroz Kazimierz, Jelinski Lukasz, Bruski Dawid, Pachocki Lukasz, Baginski Grzegorz

机构信息

Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland.

Saferoad Sp. z o.o., 87-800 Wloclawek, Poland.

出版信息

Materials (Basel). 2022 Feb 24;15(5):1712. doi: 10.3390/ma15051712.

DOI:10.3390/ma15051712
PMID:35268939
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8911236/
Abstract

A combination of crash cushion and end-terminal, hybrid energy absorbing devices have been in use worldwide for a few years already. They include SafeEnd, a system Poland has recently introduced. Some road authorities have raised concerns as regards the operating conditions of the devices and how they work together with safety barriers. The objective of this research is to clarify the concerns and answer the following questions: (1) Can SafeEnd devices be used as hybrid devices and combine the roles of end-terminal and crash cushion placed before an obstacle? (2) What should be the rules for installing crash cushions at diverging roads and at the start of an off-ramp? The article presents characteristics of SafeEnd devices, defines the doubts raised by road safety auditors, discusses the results of field and numerical tests of the devices and explains the design principles for interchange ramps where crash cushions are required. The study results have helped to answer the research questions: SafeEnd devices fulfil the role of end-terminal and crash cushion, it is possible to make them more visible and principles have been defined for how the devices should be used at road interchanges. Further research should help to define general principles of deploying road restraint systems such as crashworthy terminals, crash cushions or hybrid devices.

摘要

碰撞缓冲垫和端部终端相结合的混合能量吸收装置已经在全球使用了数年。其中包括波兰最近引入的SafeEnd系统。一些道路管理部门对这些装置的运行条件以及它们与安全护栏协同工作的方式表示担忧。本研究的目的是澄清这些担忧并回答以下问题：（1）SafeEnd装置能否用作混合装置，并兼具端部终端和障碍物前碰撞缓冲垫的作用？（2）在分流道路和驶出匝道起点安装碰撞缓冲垫的规则应该是什么？本文介绍了SafeEnd装置的特点，明确了道路安全审计人员提出的疑问，讨论了该装置的现场和数值测试结果，并解释了需要安装碰撞缓冲垫的互通式立体交叉匝道的设计原则。研究结果有助于回答研究问题：SafeEnd装置兼具端部终端和碰撞缓冲垫的作用，可以使其更醒目，并且已经确定了在道路互通式立体交叉处使用这些装置的原则。进一步的研究应有助于确定部署道路防护系统（如防撞终端、碰撞缓冲垫或混合装置）的一般原则。

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