Open Data Supporting GIS-based Walkability Assessment: Case Study for City of Zagreb, Croatia

Abstract. The study presented in this paper aims to contribute to the broader discourse on urban planning challenges by presenting a preliminary walkability assessment for the city of Zagreb, Croatia. Using the open-source OS-WALK-EU walkability assessment tool and open government and data from OSM, we demonstrated how data-based walkability assessment can provide information to support relevant policy making. The assessment considered two walkability user perspectives, one focused on enjoying free time and other on daily obligations (e.g. commuting to work). Preliminary findings indicate that walkability index scores are higher in the city centre and decrease towards the periphery for both user perspectives. Additionally, the results indicate that despite different user perspectives give different walkability scores, these are almost uniform across Zagreb, making all the assessed districts equally attractive for both, enjoying free time and do daily obligations.