A Heuristic Approach to Assess the Performance Efficiency of Road Intersections in Urban Environments from the Resilience Perspective

Which intersection geometry or type of control mode may affect the efficiency and resilience at urban isolated intersections before and after a disruption as a storm? Is the research question that is expected to answer in this paper. Starting from some types of urban road intersections from the real world, this paper presents the first conceptualization of the research problem including both pre-storm situations where delay times lost at roundabouts and signalized intersections are compared with each other, and post-storm situations where the delay times at roundabouts and two-way stop-controlled intersections are compared assuming that traffic signals act as stop signs after the disruption. There were significant changes in delay times for traffic signals before and after a storm. In view of future road traffic management strategies, the results may guide to select the types of intersections suitable to maintain stable operation against disruptions and to improve their resiliency.