In this paper a traffic control approach is proposed that integrates ramp metering and dynamic route guidance using a model predictive control framework. The main objective of the control is to minimize the total time spent by the vehicles in the network (TTS) by providing accurate travel times while taking into account the effect of other traffic control measures, such as ramp metering. By aiming at minimizing the TTS as well as the difference between travel times shown on the dynamic route information panels and the travel times actually realized by the drivers, the interests of both the individual drivers as well as the road administration are pursued. Simulation results for a case study show that the proposed model predictive control results in a lower TTS while at the same time the drivers get accurate travel time information. (Author/publisher)
Samenvatting