Search results for "INGENIERIA DEL TERRENO"
showing 6 items of 6 documents
Dasymetric distribution of votes in a dense city
2017
[EN] A large proportion of electoral analyses using geography are performed on a small area basis, such as polling units. Unfortunately, polling units are frequently redrawn, provoking breaks in their data series. Previous electoral results play a key role in many analyses. They are used by political party workers and journalists to present quick assessments of outcomes, by political scientists and electoral geographers to perform detailed scrutinizes and by pollsters and forecasters to anticipate electoral results. In this paper, we study to what extent more complex geographical approaches (based on a proper location of electors on the territory using dasymetric techniques) are of value in…
Construcción de una tipología rural/urbana para los municipios españoles
2016
[ES] Este artículo pretende establecer criterios para delimitar de modo riguroso qué es lo que constituye un territorio rural o urbano, dadas las limitaciones de las metodologías tradicionales. En segundo lugar, se propone una tipología rural/urbana a escala municipal para España tomando en consideración tres criterios: la demografía —combinando densidades con umbrales mínimos de población— la información sobre coberturas y usos del suelo y el grado de accesibilidad desde el mundo rural a las ciudades. El resultado es el establecimiento de seis tipos distintos de municipios.
The European concept of city: An application to Spain
2014
Este trabajo presenta un ejercicio de determinación de ciudades a partir de los criterios desarrollados en el seno de Eurostat y la DG-Regio. El concepto de ciudad se vincula a los centros de decisión a nivel local, es decir se trata de «ciudades administrativas» en el sentido de que están constituidas por un municipio o agrupación de municipios físicamente contiguos. No se trata de aglomeraciones puras de población, que satisfacen ciertos criterios de densidad y volumen mínimo, sino que, partiendo de estas aglomeraciones, a las que denominaremos centros urbanos, se las vincula a los municipios a partir de reglas prefijadas. Las limitaciones principales de este enfoque son fundamentalmente …
Estimaciones de la población rural y urbana a nivel municipal
2015
[EN] This paper presents an exercise in the estimation of rural and urban population at municipal level. Our starting point is a population density grid at 1 km2 resolution and national coverage, which has been elaborated previously by the authors. Applying standard criteria in European official statistics (Eurostat) we determine the population that lives in urban clusters (contiguous grid cells with a minimum population density of 300 inhabitants per km2 and a minimum population of 5.000 inhabitants) and outside these clusters, which are called rural areas. Using similar criteria (contiguous grid cells with a minimum population density of 1.500 inhabitants per km2 and a minimum population …
A population density grid for Spain
2013
This article describes a high-resolution land cover data set for Spain and its application to dasymetric population mapping (at census tract level). Eventually, this vector layer is transformed into a grid format. The work parallels the effort of the Joint Research Centre (JRC) of the European Commission, in collaboration with Eurostat and the European Environment Agency (EEA), in building a population density grid for the whole of Europe, combining CORINE Land Cover with population data per commune. We solve many of the problems due to the low resolution of CORINE Land Cover, which are especially visible with Spanish data. An accuracy assessment is carried out from a simple aggregation of …
Clustering cities through urban metrics analysis
2017
[EN] This paper describes a process for measuring and characterizing urban morphological zones. These urban zones are delineated for the entire area of Spain, independently of administrative boundaries and excluding demographic data, using a high resolution land-use dataset. Given the rich information available on land cover and subsequently assigned population data, it is possible to calculate a set of urban spatial metrics to classify these urban zones into homogenous morphological groups. Four types of urban agglomerations are identified in Spain by working with these urban metrics and applying a final cluster analysis. Although these groups have a general complex monocentric typology, e…