Installation and experiences of field testing a fuzzy signal controller

This paper describes the installation of a fuzzy signal controller (FSC) at a real intersection. The results of a vehicle-actuated control system with a fuzzy-control system using microscopic simulation and field measurements have been compared. The results indicate that the fuzzy control is very competitive against traditional vehicle-actuated control, if traffic volumes are higher than low-demand. The benefit of fuzzy logic lies in its ability to handle linguistic information by representing it as a fuzzy set. The simple algorithm structure, the savings of material costs and the low installation and maintenance costs are important advantages. The results of this paper prove that the FSC can be installed in real infrastructure and that fuzzy algorithms can be more effective than traditional vehicle-actuated control.