A GIS-based approach to enhance safety and accessibility of shared mobility services

Abstract

The implementation of shared mobility services within cities plays an influential key role in enhancing sustainability by optimizing the use of transport resources, reducing the number of private vehicles, and mitigating traffic congestion and carbon emissions, thus contributing to a greener and more eco-friendly urban environment. Nonetheless, the full potential of shared mobility services may be hindered by inadequate walkability of the locations for pick-up and drop-off points. High accident risks can deter users from accessing service pick-up points, thereby constraining the adoption of these sustainable transport solutions. In this regard, the paper presents a comprehensive methodological approach based on spatial analysis using Geographic Information Systems (GIS) that examines various levels of data to analyse the interplay between accidents and accessibility. This method allows for a deeper understanding of how urban design influences safety and accessibility in shared mobility. By integrating multiple layers of spatial data, i.e. accident hotspots and topology and infrastructural features of the pedestrian transport network, the study allows a twofold “BS-ScOREs – BikeSharing - Safety and accessibility Outcome Rating Evaluations” for an overall qualitative and quantitative assessment within the buffers around service pick-up points and highlight punctual criticalities. The method was applied to a case study, considering the bikesharing stations in Palermo (Italy). A well-designed pedestrian-friendly environment complements these shared services, enabling convenient access to transport hubs and enhancing the overall accessibility and usability of sustainable mobility alternatives within urban areas. Research outcomes can support establishing safe and well-planned pedestrian environments at these locations and, along with implementing road safety initiatives, can enhance confidence and encourage broader engagement with shared mobility services. Further research will focus on applying the method to other points of interest (e.g. carsharing stations; schools), encompassing additional characteristics linked to walkability and conducting in-field surveys to validate the findings.