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Road design intervention based on traffic accident dynamics: a forensic intelligence approach

机译：基于交通事故动态的道路设计干预：法医情报方法

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摘要

Traffic accidents in the Brazilian Federal District historically have killed more than 400 people per year. With the purpose of reducing this number and saving lives, we investigated all fatal car crashes which occurred in 2012, proposing solutions for the most dangerous areas. However, the focus of this paper is to study in detail the worst hot spot, located at the intersection formed by two highways (BR-251 and DF-473). To do this, we used forensic data to reconstruct the collisions, which allowed us to identify some contributing factors for these events, namely: the lack of speed control devices, inadequate signs and a route that provides the cross-flow without safety conditions. Besides, all collisions occurred in this crossroad had very similar car crash dynamics. Thus, we suggested two possible engineering road interventions: (ⅰ) an emergency intervention: placement of lines to stimulate the speed reduction, before a transversal bump; and (ⅱ) a definitive intervention, more expensive and longest deployment engineering: the adoption of a roundabout preceded by an electronic speed control device with the necessary traffic signs adaptation. We emphasize that the Prosecution Service of the Federal District and Territories supported this work in order to have qualified technical information to demand efficient actions from authorities responsible for the roads.
机译：历史上，巴西联邦区的交通事故每年造成400多人死亡。为了减少人数并挽救生命，我们调查了2012年发生的所有致命车祸，并提出了针对最危险区域的解决方案。但是，本文的重点是详细研究最差的热点，该热点位于两条高速公路（BR-251和DF-473）形成的交叉路口。为此，我们使用法医数据重建了碰撞，这使我们能够确定这些事件的一些促成因素，即：缺乏速度控制装置，信号不足以及提供没有安全条件的横流的路线。此外，在这个十字路口发生的所有碰撞都具有非常相似的车祸动力学。因此，我们提出了两种可能的工程道路干预措施：（ⅰ）紧急干预措施：在横向颠簸之前布置线路以刺激速度降低; （ⅱ）明确的干预措施，更昂贵，最长的部署工程：在采用环形交叉路口之前，先采用电子速度控制装置，并配备必要的交通标志。我们强调，联邦区和领地检察院支持这项工作，以便获得合格的技术信息，以要求负责道路的当局采取有效行动。

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