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An Innovative Approach to Surveying the Geometry of Visibility Triangles at Railway Level Crossings

机译：一种创新方法来调查铁路级交叉路区可见性三角形几何形状

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摘要

Railway level crossings (RLCs) in Poland are classified according to their protection systems. Category D, which is a form of passive RLC, aims to ensure safe and efficient operation. Surveying is essential to prepare and control the geometry of the visibility triangles used at RLCs. This article presents a new approach to monitoring the geometry of visibility triangles of RLCs using an electronic total station and a magnetic measuring square (MMS). Its main assumptions are presented together with the application of the innovative measuring instruments. Visibility is demonstrated taking into account the angles of intersection of the road axis with the track axis of the railway line and additional attributes related to the analysis and evaluation of general visibility conditions. The research highlights controversies that have received special attention against the background of the safety status of railway level crossings. As a case study, the RLC located on a single-track railway line in Poland is examined. The final section presents applications of the results obtained according to the proposed methodology. It is shown that the proposed approach is practical and effective. In addition to surveyors, the survey methodology can be used by road and rail traffic engineers and policy makers to further improve traffic safety at RLCs. This is an important global research task.
机译：波兰的铁路级联网（RLC）根据其保护系统进行分类。 D类D，即被动RLC的形式，旨在确保安全有效的操作。测量对于准备和控制RLC使用的可见度三角形的几何形状至关重要。本文介绍了一种新方法，用于使用电子全站和磁测量方（MMS）监测RLC的可见度三角形的几何形状。其主要假设与创新测量仪器的应用一起呈现。考虑到道路轴与铁路线的轨道轴线的交叉角和与一般可见度条件的分析和评估相关的附加属性的交叉角度来证明能见度。该研究突出了对铁路级交叉安全状况的背景受到特别注意的争议。作为一个案例研究，检查了波兰单轨铁路线上的RLC。最后一节提出了根据所提出的方法获得的结果。结果表明，所提出的方法是实用且有效的。除测量师外，调查方法还可以由道路和铁路交通工程师和决策者使用，以进一步提高RLC的交通安全。这是一个重要的全球研究任务。

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