GIS-Based System for Sight Distance Analysis of Highways

Castro, María; Anta, José Antonio; Iglesias, L.; Sánchez, Javier Solana

doi:10.1061/(asce)cp.1943-5487.0000317

Cited by 54 publications

(50 citation statements)

References 17 publications

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“…4) is generated by a software that has been developed for the calculation and analysis of sight distances, based on a GIS (Castro et al 2014). For the study a digital terrain model and a file containing the points that define vehicle trajectory are needed.…”

Section: Methodsmentioning

confidence: 99%

Finding and characterizing hidden dips in roads

Castro

Blas

Rodríguez-Solano

et al. 2015

The Baltic Journal of Road and Bridge Engineering

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Abstract. Sometimes when connecting a crest vertical curve, followed by a sag and another crest, a road disappears from the view of a driver to reappear later. Then, there is a loss of path or a hidden dip in a road. It is essential to avoid losses when they hide dangerous points, such as intersections or unexpected changes in direction. In addition, this loss disrupts drivers and its effect depends on quantitative relationships between the variables involved in the problem. This paper presents a quantitative procedure for studying hidden dips in roads. The method is based on calculating the sections visible and hidden by a driver using a Geographic Information System. An application to a Spanish road is presented. Procedure results were compared with in situ carried out studies and with a video of the highway recorded using a Global Positioning System equipped video camera embarked in a vehicle. The main quantitative issues related to hidden dips are discussed.

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Section: Methodsmentioning

confidence: 99%

Finding and characterizing hidden dips in roads

Castro

Blas

Rodríguez-Solano

et al. 2015

The Baltic Journal of Road and Bridge Engineering

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“…However, it is a slow and usually costly process. On the other hand, Castro et al [14] have proposed a procedure to find divings based on determining, for each highway station, what sections ahead are visible and what are hidden. This procedure is especially useful for existing roads and uses a software that has been developed for the calculation and analysis of sight distances, based on ArcGIS.…”

Section: Introductionmentioning

confidence: 99%

“…It requires a digital terrain model (DTM) of the studied road and the path followed by vehicles. Procedure accuracy depends on DTM resolution and distance between calculation points [14].…”

Section: Introductionmentioning

confidence: 99%

A methodology to measure sight-hidden dips’ parameters

et al. 2014

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“…These charts represent on the horizontal axis the stations where the driver is sequentially placed, and on the vertical axis the sight distance variables ahead each driver position (Kühn & Jha 2011, Castro et al 2014. Besides the comparison available and required sight distances, such charts result advantageous to evaluate the 3-D alignment coordination (Roos & Zimmermann, 2004, Jha et al 2011, Castro et al 2015a ABSTRACT: As one of the main elements of geometric design, sight distance must be considered carefully for the safe and efficient operation of highways.…”

Section: Introductionmentioning

confidence: 99%