Territorial cohesion impacts of high-speed rail under different zoning systems

Ortega Perez, Emilio and López Suárez, Elena and Monzón de Cáceres, Andrés (2014). Territorial cohesion impacts of high-speed rail under different zoning systems. "JOURNAL OF TRANSPORT GEOGRAPHY", v. 34 ; pp. 16-24. ISSN 0966-6923. https://doi.org/10.1016/j.jtrangeo.2013.10.018.

Description

Title: Territorial cohesion impacts of high-speed rail under different zoning systems
Author/s:
  • Ortega Perez, Emilio
  • López Suárez, Elena
  • Monzón de Cáceres, Andrés
Item Type: Article
Título de Revista/Publicación: JOURNAL OF TRANSPORT GEOGRAPHY
Date: 2014
Volume: 34
Subjects:
Faculty: E.T.S.I. Montes (UPM)
Department: Ingeniería y Gestión Forestal y Ambiental
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Large-scale transport infrastructure projects such as high-speed rail (HSR) produce significant effects on the spatial distribution of accessibility. These effects, commonly known as territorial cohesion effects, are receiving increasing attention in the research literature. However, there is little empirical research into the sensitivity of these cohesion results to methodological issues such as the definition of the limits of the study area or the zoning system. In a previous paper (Ortega et al., 2012), we investigated the influence of scale issues, comparing the cohesion results obtained at four different planning levels. This paper makes an additional contribution to our research with the investigation of the influence of zoning issues. We analyze the extent to which changes in the size of the units of analysis influence the measurement of spatial inequalities. The methodology is tested by application to the Galician (north-western) HSR corridor, with a length of nearly 670 km, included in the Spanish PEIT (Strategic Transport and Infrastructure Plan) 2005-2020. We calculated the accessibility indicators for the Galician HSR corridor and assessed their corresponding territorial distribution. We used five alternative zoning systems depending on the method of data representation used (vector or raster), and the level of detail (cartographic accuracy or cell size). Our results suggest that the choice between a vector-based and raster-based system has important implications. The vector system produces a higher mean accessibility value and a more polarized accessibility distribution than raster systems. The increased pixel size of raster-based systems tends to give rise to higher mean accessibility values and a more balanced accessibility distribution. Our findings strongly encourage spatial analysts to acknowledge that the results of their analyses may vary widely according to the definition of the units of analysis.

More information

Item ID: 35620
DC Identifier: http://oa.upm.es/35620/
OAI Identifier: oai:oa.upm.es:35620
DOI: 10.1016/j.jtrangeo.2013.10.018
Official URL: http://ac.els-cdn.com/S0966692313002160/1-s2.0-S0966692313002160-main.pdf?_tid=136e87b6-13f5-11e5-b406-00000aacb362&acdnat=1434438081_de806c287ebf17111524e0bf7f179b01
Deposited by: Memoria Investigacion
Deposited on: 16 Jun 2015 07:18
Last Modified: 20 Apr 2018 17:13
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