This paper investigates the spatial and technical possibilities for transforming the Croatian capital Zagreb Lower Town street network according to the principle of superblocks. Superblock is an innovative intervention in the use of urban areas, the goal of which is to restore space for residents' recreation, reduce motorised traffic, promote sustainable mobility and an active lifestyle, ensure the greening of the area, and thereby reduce the effects of climate change, all while improving the functioning of the entire transport system. The initial analysis based on the publicly available literature, spatial and statistical data, and regulations showed that the Lower Town area could be divided into 15 superblocks, of which the potential of one specific superblock was analysed in detail. Based on the collected data on traffic and infrastructure, an analysis of the current state of the pedestrian and motor system was performed. The quality of the chosen superblock transport network was evaluated, and a proposal was made to transform it by implementing eight measures. Based on the re-evaluated results following the implementation of the proposed measures, it was concluded that small interventions in the superblock infrastructure, i.e. modifications of transport corridors that do not require extensive construction works, can provide an environment that would improve the quality of the entire transport system.

Zagreb; superblock; urban transport systems; transport infrastructure; measures; quality analysis