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SAFETY QUESTIONS OF THE DRIVER IN BUS FRONTAL COLLISIONS

机译:公交车前碰撞中司机的安全问题

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The most frequent accident type of buses, the frontal collisions have a very wide range of varieties. On the other hand a lot of different goals are belonging to this subject: protection of the bus passengers, protection of the driver and the crew, the outside partners in the accident, the control systems of the bus, etc. It means that this problem is very complex. The international regulatory work is not so strong on this field, there is only one UN-ECE safety regulation (R.80) dealing with the required strength of bus seats and seat anchorages. In the frame of the UN-ECE organization (WP.29 / GRSG) more attempts tried to step forward, but without reasonable results. (The author participated in these efforts). This paper uses a complex approach to the solution with the help of statistics, structural analysis, energy consideration, etc. Based on accident statistics and accident analysis containing more than 400 events, the paper classifies the basic accident situations to be considered, the different goals mentioned above and specifies the so called “standard accident situations” from which the different requirements and approval test methods can be derived. Different criteria shall be applied in different safety regulations: energy criterion, deformation criterion, survival space requirement, functionality, etc. this is discussed in the paper. It is proved that the above mentioned goals cannot be solved in one international safety regulation, a set of regulations are needed. The structural analysis of the superstructure of the front part of buses – front wall structure, driver’s cab, bumper, main longitudinal underframe elements, etc. – can be elements which can absorb considerable amount of energy, which can provide the required strength and also which are dangerous in respect of the survival space in frontal collision. The conclusion of the paper is that at least one safety regulation is needed to solve the driver (and crew) protection, and two more, one for the passengers protection assuring the described deceleration pulse and one against underrun of cars and for the protection of sensitive control systems (brake, steering, electric, etc.) The paper cannot solve the whole, complex problem, but tries to give a logical frame for the future works and investigations to produce the missing international safety regulation for driver protection.
机译:公交车的最常见的事故类型,正面碰撞有一个非常广泛的品种。在另一方面很多不同的目标都属于这一主题:公交车乘客的保护驾驶员和乘员的保护,在发生事故的外部合作伙伴,公交车等的控制系统,这意味着,这个问题是非常复杂的。国际监管工作也不是那么强于这个领域,只有一个处理的巴士座椅和座椅固定点强度要求联合国ECE安全监管(R.80)。在UN-ECE组织的框架(WP.29 / GRSG)更多的尝试试图一步,但没有合理的结果。 (作者参与了这些工作)。本文采用一种复杂的方式与统计数据的帮助下,结构分析,能源的考虑,等等。该解决方案基于事故统计和事故分析含有超过400个事件,纸进行分类被认为是基本的意外情况下,不同的目标如上所述,用于指定的不同要求和批准试验方法可得出所谓的“标准的意外情况”。能量准则,变形准则,生存空间要求,功能等,这是在本文讨论:不同的标准将在不同的安全法规来施加。实践证明,上述目标不能在一个国际安全法规来解决,需要一套法规。前壁结构,驾驶室,保险杠,主纵向底架元件等 - - 公共汽车的前部的上部结构的结构分析可以是能够吸收大量的能量的元件,它可以提供所需的强度,并且还其中是关于在正面碰撞生存空间的危险。本文的结论是,至少需要一个安全监管,以解决驱动程序(和船员)保护,以及两个,一个为乘客提供保护确保所描述的减速脉冲和一个对汽车的不足,而对于敏感的保护控制系统(制动,转向,电等),纸不能解决整体,复杂的问题,而是试图给未来的工作和调查,以生产为驱动保护缺失的国际安全规定的逻辑框架。

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