Design of Fuzzy Neural Network Control Method for Ramp Metering

In the view of the worsening congestion situation of freeway and related urban expressway. Based on fuzzy metering and neural network theories. A fuzzy control method which chooses d-value of mainline traffic state and expected state and ramp traffic state as input variables, ramp metering rate as output variable was raised. accordingly a ramp metering algorithm was put forward to establish a five-layer Fuzzy Neural Network (FNN)model for deepen the ramp metering theory and method.