Identification of Key Roads with Minimal Resilience in City Traffic

As the lifeline system for city, transportation systems may be degraded for various reasons leading to the uncertainty on the reliability of traffic operation. While different reliability measures have been proposed for city traffic, it still remains challenging how congested roads are recovered in daily traffic operation. Based on the concept of resilience and the use of real-time traffic data, we study the resilience of roads during the daily traffic. Through the comparison of different roads, we can identify the worst resilient roads that cannot recover soon from the congestion during the rush hours. These identified roads with minimal resilience can be the targets of traffic improvement in the corresponding reliability management.