Identifying spatial patterns for the civil works undertaken by public bodies in Tenerife island

Abstract

A georeferenced inventory of the public tenders of these last 10
years is used to explore spatial patterns in each public body intervention.
Their distribution in rural vs. urban areas, as well as in
relation with areas subject to special regulation: natural protected
areas, coasts and ravines, is analyzed in a GIS environment using
vector analysis, geoprocessing and data management tools. Factors
such as a concentrated vs. disperse performance, or the repetitive
or sporadic character of the intervention in the same point are also
analyzed. A non-spatial criterion, the tender mean budget is also
used in characterization. Results show that differential features do
exist, prominently, the urban specialization in the regional and municipal
levels intervention, or the frequent intervention of the state
in the coastal stripe. The intervention of the island administration is
more equilibrated between urban and rural areas; it is also the only
administration active in all the areas with special regulation. Higher
administrative levels imply more spatial concentration, and greater
mean budget of the tender, in its performance. Non-compliance
with the spatial pattern usually identifies interventions atypical of
the administrative level involved.