Sight distance analysis of highways using GIS tools

Castro, María; Iglesias, L.; Sánchez, Javier Solana; Ambrósio, Luís Alberto

doi:10.1016/j.trc.2011.05.012

Cited by 63 publications

(44 citation statements)

References 11 publications

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“…The software stores not only the available sight distance information but also what highway sections are or are not visible from each point. This is an important difference with highway design software and with other works (Castro et al 2011). In them, only sight distance (distance measured along the highway up to the first not visible point) is stored.…”

Section: Methodsmentioning

confidence: 99%

“…On the other hand, using a GIS to estimate sight distances in existing highways through procedures based on several standard tools (such as view shed calculation tools) has been proposed (Castro et al 2011;Khattak, Shamayleh 2005). These methods have the advantage that knowing highway design data (length of tangents, curves radii, spirals, etc.)…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

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%

Section: Literature Reviewmentioning

confidence: 99%

Finding and characterizing hidden dips in roads

Castro

Blas

Rodríguez-Solano

et al. 2015

The Baltic Journal of Road and Bridge Engineering

Self Cite

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show abstract

“…in many already built highways). Castro et al [11] showed that sight distances obtained by GIS approach and the classic highway design approach are statistically the same.…”

Section: D Models Combining Horizontal and Vertical Alignmentsmentioning

confidence: 96%

“…Castro et al [11] implemented a procedure supported by Geographic Information Systems (GIS) in order to determine highway distances visible to the driver in a two-lane highway section. The GIS advantage in highway sight distance analysis is using data sources that besides the terrain include obstacles like trees or buildings that could reduce the driver sight distance.…”

Section: D Models Combining Horizontal and Vertical Alignmentsmentioning

confidence: 99%

Sight distance restriction on highways’ horizontal curves: insights and sensitivity analysis

Bassan¹

2016

Eur. Transp. Res. Rev.

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“…Ismail and Sayed (2007) devised a precise algorithm to compute the available sight distance. Besides algorithms based on line-ofsight loops, procedures based on viewsheds were developed to study sight distance on highways (Castro et al 2011, Jha et al 2011.…”

Section: Introductionmentioning

confidence: 99%