Comparative Analysis of GIS Application in Spatial Planning: A Case Study of Ljubljana and Zagreb

Abstract

Kroz ovaj rad provedeno je istraživanje primjene GIS tehnologija u prostornom planiranju grada Ljubljane i Zagreba. Naglasak je stavljen na usporedbu kvalitete, dostupnosti i razine uključenosti geoprostornih podataka prilikom urbanističkog planiranja i provođenja prostornih analiza. Kroz istraživanje i intervjue sa stručnjacima u oba grada, analizirana je točnost, pouzdanost i primjenjivost geoprostornih podataka u praksi, te utjecaj regulativa poput INSPIRE-a i nacionalnih zakona na njihovu kvalitetu i standardizaciju. Korištenjem javno dostupnih geoprostornih podataka, programa QGIS, buffer metode i OpenRouteService alata, provedena je prostorna analiza pristupačnosti javnog prometa u Ljubljani i Zagrebu, te vizualizacija rezultata provedene analize. Rezultati istraživanja omogućuju bolje razumijevanje prednosti, izazova i ograničenja GIS tehnologija, te nude smjernice za poboljšanje i razmjenu iskustava u praksi između gradova.This study explores the application of GIS technologies in spatial planning, with a focus on comparing the quality, availability and current level of integration of geospatial data in Ljubljana and Zagreb, in the context of urban planning and spatial analysis implementation. Through research and interviews with experts in both cities, the accuracy, reliability, and practical applicability of geospatial data were analyzed, along with the influence of regulations such as the INSPIRE directive and national laws on data quality and standardization. Using publicly available geospatial data, the QGIS software, buffer method, and OpenRouteService tools, a spatial analysis of public transport accessibility in Ljubljana and Zagreb was conducted, followed by visualization of the results. The findings provide a deeper understanding of the advantages, challenges, and limitations of GIS technologies and offer recommendations for improvement and knowledge exchange in urban planning practices