Traffic safety of children in urban environment has been analysed because of different reasons – the main is that traffic accidents are leading cause of death among young children and that their cognitive capacities, up to certain age, do affect significantly their traffic behaviour. The field study done previously by the authors including children pedestrians (aged 6-15) in Croatia and Italy at crosswalks situated at signalized intersections pointed some common parameters influencing children traffic behaviour – age, way of walking and as infrastructural parameters green time duration, road width. In this paper the results of field study done at different types of non-signalized pedestrian crosswalks using the same methodology in two cities in Croatia with different urban environment and traffic system will be presented. The behaviour of children (more than 200 crossings) on their way to and from school was observed by video recording as well as behaviour of drivers on the crosswalk approaches using traffic counters. On in total 11 crosswalks. The aim was to establish important infrastructural parameters that influence children behaviour in conflict area of pedestrian crosswalk. In this case children traffic behaviour was analysed and compared on the basis of measured pedestrian speed in the conflict zone of crosswalks. Analysed parameters were grouped as those considering children behaviour, driver behaviour and infrastructure and traffic. Statistical analyse was done to establish correlation between children crossing speed and defined parameters and significantly important parameters were identified. Based on the established importance of certain infrastructural parameters, recommendations for adjustment of crosswalk design in order to better meet children needs, was done.