Path finder algorithm used by distributed expert system for traffic control

The trains are considered tasks with specified temporal behaviors that have to fulfill their deadlines. The solutions are found with distributed expert systems. The control signals are implemented and verified using temporal Rule Nets, which are a formalism that seeks to express an automatism in a similar way to a human being: “IF conditions THEN actions”. The results obtained through simulations show that the proposed distributed controllers solve the control problems and can be used for large scale implementation. An algorithm for calculate all possible paths is presented.