• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Roadside Safety Design and Devices >Developing a Safer Impact-Absorbing Street Lighting Pole for Urban Environments and Review of Test Requirements and Pass–Fail Criteria
【24h】

Developing a Safer Impact-Absorbing Street Lighting Pole for Urban Environments and Review of Test Requirements and Pass–Fail Criteria

机译：开发适用于城市环境的安全吸收冲击的街灯杆，并审查测试要求和通过/失败标准

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

According to Australian Road Transport Statistics, every third accident is a single-vehiclernaccident and involves a collision with a roadside object, such as trees, utility poles, bridgernfences, buildings, and others. Therefore, it is important to improve the performance of roadsidernstreet furniture in order to reduce the road toll.rnThis paper presents an overview of the development process for a new safer impactabsorbingrnstreet lighting pole (IASLP) using a dual crumple zone. There are two types ofrnfrangible street light poles used in Australia: slip-base street light poles (SBSLP) and IASLP.rnThe SBSLP is commonly used in outer metropolitan areas where there is minimal or nornpedestrian traffic. Its mode of operation is to detach and provide minimum resistance to anrnimpacting out-of-control vehicle. Due to this breakaway feature, the impacting vehiclerndeceleration is low and could result in no injuries to the vehicle occupants. On the other hand,rnthe IASLP is predominantly used in inner-metropolitan areas, where pedestrian traffic isrnsignificant and a probability of injuring pedestrians by the falling pole is high. The IASLP isrndesigned to deform and absorb energy during impact. It should stay attached to the pole base,rnsafely arrest the vehicle, and not harm its occupants. The IASLP must deform progressively andrnin a predictable manner so it does not present danger to the pedestrians or other road users. Therernare two types of footing for IASLP: in ground and base plate mounted. This paper deals withrnbase plate-mounted IASLP which is preferred by some road authorities for maintenance reasons.rnThe IASLPs have been used on Australian roads for more than 20 years and some have beenrntested using an average Australian car with a mass of 1,200 kg and traveling at 60 km/h. Thisrntype of IASLP has only one crumple zone, optimized for one impact energy level. In line withrnchanging crash testing requirement for other road safety hardware such as crash cushions or roadrnbarriers, it was important to advance towards more-realistic and more-effective designs, utilizingrnsmaller vehicles at lower speeds and heavier vehicles at higher speeds. A dual crumple zone polernhas been developed in response to this requirement. Moreover, to improve shear strength of thisrnpole, the column at the base has been reinforced and to produce safer response to vehicle impact,rnthe base plate has been lowered underground.rnWhile developing this new design for IASLP, testing authorities in Australia andrnoverseas appear to have different interpretations of the pass–fail criteria, which may lead tornacceptance of unsafe designs.rnThe intention of this paper is to propose a new test matrix and evaluation criteria of testsrnresults as well as to present a number of critical design changes for the new safer IASLP.rnINTRODUCTIONrnRoad crashes represent a large human and financial burden to Australian society. Since recordrnkeeping in 1925, there have been more than 180,000 deaths on Australia’s roads. The annualrneconomic cost of road crashes is estimated to be $27 billion per annum and the socialrnconsequences are devastating.rnAlthough the road trauma levels have declined substantially over the last four decades thernroad death toll is still significant: it was 3,798 in 1970 and 1,192 in 2013 (1). Approximately 1/3rnof these fatal accidents involve fixed-roadside objects. A safer IASLP has the potential to make arnsignificant contribution to the reduction of the Australian road toll. Specifically, the IASLPrnfunction is to protect two groups of road users in an event of road accident—vehicle occupantsrn(driver and passengers) and other road users (pedestrians and other road traffic).rnTESTING AND EVALUATIONrnThe initial project objectives include the following:rn1. To define a suitable test matrix andrn2. To define the test evaluation and pass–fail criteria.rnThe proposed test matrix has been changed from currently accepted 1,200-kg sedanrnvehicle at 60 km/h (kinetic energy E = 167 kJ) torn• 1,100 kg at 50 km/h, E = 106 kJ, andrn• 1,500 kg at 70 km/h, E = 282 kJ.rnThis matrix is more representative of vehicles present on the road today and better coversrnthe range of possible impacts. The matrix uses Manual for Assessing Safety Hardware (MASH)rnvehicles and the proposed test for IASLP in the AS 3845.2 draft (2). A smaller 1,100-kg vehiclernat 50 km/h was added to the AS 3845.2 matrix as research has shown that it could producernhigher occupant ride-down acceleration.rnThe evaluation criteria were based on following documents:rn• AS 3845.2 Draft: Road Safety Barrier Systems (3);rn• AS 1158.1.2 2010: Lighting for Roads and Public Spaces (4); andrn• MASH 2009: Manual for Assessing Safety Hardware (2).rnThe evaluation criteria were revised based on interpretation of crash test results asrndiscussed in
机译：根据《澳大利亚公路运输统计》，每三起事故都是一次车辆事故，涉及与路边物体的碰撞，例如树木，电线杆，桥梁，建筑物等。因此，重要的是提高路边家具的性能以减少道路通行费。本文概述了使用双压区的新型更安全的冲击吸收路灯杆（IASLP）的开发过程。在澳大利亚，有两种类型的易碎路灯杆：滑基路灯杆（SBSLP）和IASLP。rnSBSLP通常用于交通量很少或行人通达的大都市区。它的操作模式是拆开并提供最小的抵抗撞击失控车辆的能力。由于具有这种分离功能，因此影响的车辆减速度较低，并且不会对车辆乘员造成伤害。另一方面，IASLP主要用于市中心地区，那里的行人交通量不大，落杆伤害行人的可能性很高。 IASLP设计为在撞击过程中变形并吸收能量。它应保持固定在杆架上，安全地扣住车辆，并且不伤及乘员。 IASLP必须逐渐变形并以可预见的方式变形，因此不会对行人或其他道路使用者造成危险。 IASLP的立足点有两种类型：地面安装和底板安装。本文涉及的是安装在地面上的IASLP，由于维护原因，一些道路当局首选IASLP.rn IASLP已在澳大利亚道路上使用了20多年，其中一些已经使用平均质量为1,200公斤的澳大利亚普通汽车进行了测试并在60公里/小时IASLP的这种类型只有一个折皱区，针对一个冲击能级进行了优化。为了满足对其他道路安全硬件（如防撞垫或路障）的碰撞测试要求的不断变化，重要的是要朝着更现实，更有效的设计方向发展，以使用较低速度的较小车辆和较高速度的重型车辆。响应于该要求，已经开发了双折皱区极。此外，为提高该极的抗剪强度，对底座的立柱进行了加固，以便对车辆的撞击产生更安全的响应，同时将底座降低至地下。在为IASLP开发这种新设计时，澳大利亚和rnoverseas的测试机构似乎拥有通过/失败标准的不同解释，可能会导致不安全设计的接受。本文的目的是提出一个新的测试矩阵和测试结果的评估标准，并对新的更安全的IASLP提出一些关键的设计变更。 .rnINTRODUCTIONrn道路交通事故对澳大利亚社会造成了巨大的人力和财力负担。自1925年保持记录以来，澳大利亚道路上已有超过18万人死亡。每年因道路交通事故造成的经济损失估计为270亿美元，社会后果是毁灭性的。尽管在过去的40年中道路创伤的程度已大大降低，道路交通死亡人数仍然很大：1970年为3,798人，2013年为1,192人（ 1）。这些致命事故大约1 / 3rnof涉及路边固定物体。更安全的IASLP有可能为降低澳大利亚公路通行费做出巨大贡献。具体而言，IASLP功能是在发生道路交通事故时保护两组道路使用者-车辆乘员（驾驶员和乘客）和其他道路使用者（行人和其他道路交通）。测试和评估最初的项目目标包括：rn1。定义合适的测试矩阵和。为了定义测试评估和通过/失败标准。rn提议的测试矩阵已从当前接受的时速为60 km / h的1,200 kg轿车（动能E = 167 kJ）更改为•时速为50 km / h的1,100 kg，E = 106 kJ，andrn•70 km / h时1,500 kg，E = 282 kJ.rn该矩阵更能代表当今道路上的车辆，并更好地涵盖了可能的影响范围。该矩阵使用AS 3845.2草案（2）中的《评估安全硬件（MASH）车辆手册》和针对IASLP的拟议测试。一项较小的1,100千克车辆以50 km / h的速度以50 km / h的速度行驶，被添加到AS 3845.2矩阵中，因为研究表明它可以产生更高的乘员落地加速度。 （3）; rn•AS 1158.1.2 2010：道路和公共空间照明（4）； andrn•MASH 2009：安全硬件评估手册（2）.rn基于对碰撞测试结果的解释，修订了评估标准。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号