Fuzzy route choice: an enhancement to future automotive navigation systems

A fuzzy model of the route choice process was developed based on the present production Automap Navigation System and then simulated using the Cubicalc fuzzy simulator package. The simulation ranked the route alternatives in the same order as the production navigation system. This model was then greatly simplified and re-simulated, with performance equal to the original model. The route choice model was then extended to include additional input variables not present in the Automap System and a possible scenario was simulated. The project conclusion is that for present automotive navigation systems, the use of fuzzy set theory merely complicates the system without improving performance. However, future navigation systems which use more input data may benefit from fuzzy rules