A resilience-based perimeter control strategy for urban roadway systems with Internet of vehicles

Abstract

Besides the daily traffic congestion, external disruptions of the urban roadway systems, such as heavy rainfall, is one of the most important causes that can lead local congestion to large-scale cascading failure. This paper proposes a resilience-oriented perimeter control strategy under the framework of the Internet of Vehicles (IoV). A PI feedback controller is proposed that considers a time-dependent resilience index and tested in a two-region urban city with normal congestion and rainfall disruption scenarios using micro-simulation. The parameter of maximum inflow ratio (u max in this paper) is tested. Results show that in this case study, when u max is set to 0.52, 0.61 and 0.69, respectively, the system can treat daily congestion well, while in the case of severe rainfall disruption u max=0.52 deals with the heavy rainfall well. u max=0.61 demonstrates good mobility performance in both daily congestion and rainfall disruptions. The capacity of the number of flowing vehicles per second in a network is a crucial metric for the choice of u max in this resilience-based perimeter controller. This study is a promising first step towards the development of urban resilience management strategies.