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GIS-Based System for Sight Distance Analysis of Highways

2013; American Society of Civil Engineers; Volume: 28; Issue: 3 Linguagem: Inglês

10.1061/(asce)cp.1943-5487.0000317

1943-5487

María Castro, José A. Anta, Luis Iglesias, José A. Sánchez,

Traffic Prediction and Management Techniques

Analyzing the distance visible to a driver on a highway is important for traffic safety, especially in manoeuvres such as emergency stops, when passing another vehicle, or when vehicles cross at intersections. Software that calculates highway distances visible to a driver has been developed. This software is supported by a geographic information system (GIS) and can use a trajectory defined by points obtained with a global navigation satellite system (GNSS) receiver instead of relying on project information. The software includes specific tools for studying shortcomings in three-dimensional (3D) alignment; mainly, this pertains to divings. In this article, the software and its application to a case study are presented. The results are compared with those obtained using an existing validated procedure.