A comprehensive methodology for the analysis of highway sight distance

Castro Malpica, María and Santos Berbel, César de and Iglesias Martínez, Luis (2017). A comprehensive methodology for the analysis of highway sight distance. In: "International Congress on Transport Infrastructure and Systems (TIS Roma 2017)", 10/04/2017-12/04/2017, Roma, Italia. ISBN 978-1-138-03009-1. pp. 193-200.

Description

Title: A comprehensive methodology for the analysis of highway sight distance
Author/s:
  • Castro Malpica, María
  • Santos Berbel, César de
  • Iglesias Martínez, Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: International Congress on Transport Infrastructure and Systems (TIS Roma 2017)
Event Dates: 10/04/2017-12/04/2017
Event Location: Roma, Italia
Title of Book: Transport Infrastructure and Systems: proceedingss of the Aiit International Congress on Transport Infrastructure and Systems
Date: 2017
ISBN: 978-1-138-03009-1
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Transporte y Territorio
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (371kB) | Preview

Abstract

As one of the main elements of geometric design, sight distance must be considered carefully for the safe and efficient operation of highways. An application developed on geographic information systems (GIS) was con-ceived for the three-dimensional estimation of sight distance on highways, as opposed to conventional two-dimensional techniques, which may underestimate or overestimate the actual visibility conditions. It is capable of computing the available sight distance of a highway section given the driver?s eye height, the target height, the vehicle path and an elevation model. The outcome can be studied in detail with the aid of the tools and capabilities developed, including sight-distance graphs. The influence of the input features, such as the nature of the elevation model, its resolution and the spacing between path stations on the results accuracy was ana-lyzed. The interpretation of results is also essential to explain sight distance deficiencies and provide insight into the effect of roadside elements on those results. In addition, the sight-distance graph permits the detec-tion and characterization of sight-hidden dips, an undesirable shortcoming in the spatial alignment of high-ways. The versatility of GIS enables, moreover, an integrated research of highway safety. It allows the incor-poration of diverse operational factors such as accident data, traffic volume, operating speed and design con-sistency to detect and diagnose potentially hazardous spots or, eventually, identify the factors involved in a particular accident. This paper describes the methodology utilized and reviews the main issues through case study examples.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTRA2015-63579-RUnspecifiedMaría Castro MalpicaNuevas tecnologías geoespaciales para estudios de seguridad vial

More information

Item ID: 46396
DC Identifier: http://oa.upm.es/46396/
OAI Identifier: oai:oa.upm.es:46396
Deposited by: Memoria Investigacion
Deposited on: 13 Jun 2017 12:29
Last Modified: 13 Jun 2017 12:29
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM