A multilayer optimisation framework for policy-based traffic signal control

Traffic performance has many positive and negative consequences to the environment and society. These external effects are ever more often considered in the traffic system planning and administration. Desired effects of traffic can be thought as traffic performance policies. It is also possible to support these policies through traffic management and traffic signal controllers. In this study we introduce a general framework for a process flow which allows signalised junction controllers to adapt into desired policy. Also, we present an example implementation of the processes of the framework, and experiment with it by optimising a signal controller in a microscopic traffic simulation environment.