Estimation of sight distance on highways with overhanging elements

Iglesias Martínez, Luis and Castro Malpica, María and Pascual Gallego, Valero and Santos Berbel, César de (2016). Estimation of sight distance on highways with overhanging elements. In: "International Conference on Traffic and Transportation Engineering 2016", 24-25 Noviembre 2016, Belgrado, Serbia. ISBN 978-86-916153-3-8. pp. 75-82.

Description

Title: Estimation of sight distance on highways with overhanging elements
Author/s:
  • Iglesias Martínez, Luis
  • Castro Malpica, María
  • Pascual Gallego, Valero
  • Santos Berbel, César de
Item Type: Presentation at Congress or Conference (Article)
Event Title: International Conference on Traffic and Transportation Engineering 2016
Event Dates: 24-25 Noviembre 2016
Event Location: Belgrado, Serbia
Title of Book: ICTTE Belgrade 2016. Proceeding
Date: 2016
ISBN: 978-86-916153-3-8
Subjects:
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Ingeniería Geológica y Minera
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Sight distance is a key factor in road safety. Sight distance estimation is usually performed on a digital terrain model (DTM). A DTM is a 3D representation of the terrain surface which depicts exclusively t he elevation of the bare ground. However, the reality contains many more elements influencing sight distance than the bare ground. Features such as vegetation, traffic signs, buildings and many other elements are not included in DTMs. The first approximati on solution involves the use of digital surface models (DSM), which comprise these roadside features. The use of geographic information systems (GIS) in highway safety research is interesting due to the easy integration of different factors (accidents, tra ffic data, road features) on the same software platform. However, sight distance studies based on DSM may lead to biased results when there are elements (for example, overpasses, tre e branches or cantilever signals) overhanging the roadway that cannot be interpreted by those models. This paper proposes a method to overcome such difficulties. The proposed solution is based on GIS tools (lines of sight) and multipatch datasets, which repre sent roadside features adequately, added on the DTM. It has been applied in a rural highway located in the Region of Madrid (Spain).

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTRA2015-63579-RUnspecifiedUnspecifiedUnspecified

More information

Item ID: 45852
DC Identifier: http://oa.upm.es/45852/
OAI Identifier: oai:oa.upm.es:45852
Official URL: http://ijtte.com/article/102/ICTTE_Belgrade_2016.html
Deposited by: Memoria Investigacion
Deposited on: 12 May 2017 06:52
Last Modified: 21 Jun 2018 06:22
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