Mixed controlling method of single dot signal controlling crossing

A mixed control method for a single-point signal control junction is an automatic selection timing control method for different traffic states or a fuzzy control method with a self-adaptive ability, the mixed control method comprises: at first, collecting real-time traffic information of the junction, gathering the collected data in two classes by a clustering method, in which the two classes represent a peak state and a flat state; selecting typical examples near a centre of the gathering class from each class to establish an example library down-line; determining a current traffic state of the junction by comparing the collected real-time traffic flux, speed, driveway occupied ratio, time headway, and a predictive value of the traffic state in a short time with example values in the example library; selecting the timing control or the fuzzy control according to different combinations between the current traffic state and a current signal control mode; the timing control performing signal planning with an object that motor vehicles travel ability is maximal, by considering a relay constrained condition of motor vehicles and non-motorized vihecles; the fuzzy control using a three-dimensional traffic signal fuzzy controller.