Comparison of Two Controllers for Variable Speed Limit Control

One of the traffic control methods from the domain of intelligent transport systems used to reduce congestions on urban motorways is variable speed limit control (VSLC). Main goal of VSLC is to reduce the traffic flow speed and to homogenize the traffic flow. Results are reduced density, increased safety, reduced vehicle emissions and improved throughput. To choose the best controller for VSLC prior testing in simulations is necessary. In this paper a simulation framework that enables testing and comparison of controllers for VSLC regarding traffic and environmental parameters is implemented. Using the implemented simulation framework two simple reactive controllers for VSLC are compared using a realistic urban motorway model.