The Evolution of Connectivity in Sig-T Modeling. The Case of the Spatial Data Infrastructure of Andalusia

Abstract

Connectivity is considered a crucial condition in vector network modeling, since route optimization analysis or geomarketing analyses could not be performed without it, when accessibility is among their parameters. Andalusia’s spatial data infrastructure got its start in 1990, with the creation of the Andalusian Institute of Cartography. The first public product of a vector cartography was the 1:400,000 digital map of Andalusia. Several series have been released at a scale of 1: 100,000 ever since, with different connectivity conditions that have required subsequent adjustments by transport networks researchers. The development of digital cartographic sources should not only result in an improvement in precision, but also in their operational capacity. This article analyzes the quality of these products based on their connectivity capacity with the intention of creating rules for modeling that ensure the ability to perform network analysis tasks using public and affordable spatial data infrastructures.