A dynamic phase optimization and a decision table method for control of vehicle actuated traffic signals.

For a traffic network with vehicle-actuated signals a phase optimization method is mentioned. This method is based on a discrete valued representation of the network and the dynamic programming approach. For special cost functions the phase optimization method can be substituted by a decision table or a decision diagram which allows a very fast computation of an optimal control function. The decision table approach gives the possibilities of checking the stability of the control strategy by observing the behaviour of the network state. Results of a simulation with real traffic data are discussed.