The pedestrians are the most exposed amongest all road traffic users to the possibility of being attacked or harmed, either physically or emotionally. In the present investigational study, an attempt is made to develop the model on pedestrian road crossing behaviour by considering the elements of pedestrian crossing behaviour, especially the size of the vehicular gap accepted by pedestrians and also pedestrians decision to cross or not cross the road. A field investigation was carried out at two zebra crossing facilities located at two major roundabouts in Shivamogga city. Data collection and extraction was done by utilising video-graphic data in real-time traffic conditions by the Department of Traffic Police, Shivamogga and also, by observing the behaviour of pedestrians while crossing the road. The study will also aid in determining correlations between pedestrian characteristics, crossing facilities, and vehicular traffic. This data will be analysed by regression methods in statistical analysis. As a result of this research, it is intended that a model of pedestrian gap acceptance and pedestrian crossing choice could be developed that also includes the factors that pedestrians look for when accepting the vehicle gaps between the vehicles to cross the crosswalks in roundabouts.