A swarm intelligent method for traffic light scheduling: application to real urban traffic networks

2015 ◽  
Vol 44 (1) ◽  
pp. 208-231 ◽  
Author(s):  
Wenbin Hu ◽  
Huan Wang ◽  
Liping Yan ◽  
Bo Du
Keyword(s):  
Urban Traffic ◽  
Traffic Networks ◽  
Traffic Light ◽  
Traffic Light Scheduling ◽  
Urban Traffic Networks

A Fuzzy Logic Method of Traffic State Recognition on Urban Traffic Networks

2012 ◽  
Vol 546-547 ◽  
pp. 1071-1074
Author(s):  
Jian Ling Wang ◽  
Hong Bo Lai
Keyword(s):  
Fuzzy Logic ◽  
Traffic Flow ◽  
Urban Traffic ◽  
Traffic Networks ◽  
Traffic Condition ◽  
Time Length ◽  
Traffic State ◽  
Fuzzy Logic Method ◽  
Logic Method ◽  
Urban Traffic Networks

The study object is traffic flow on main road of urban traffic networks, the traffic condition is recognized by traffic flow theory and fuzzy logic method. The average space speed is a variable of the fact flow function, the road congestion degree is described by the ratio of fact flow and traffic capacity; the ratio of congestion time length and total time length is the congestion frequency. Considering congestion degree and congestion frequency, a fuzzy logic method is used to describe the traffic state by three grades: free, congestion and serious congestion. At last, the numerical example is given to analyze traffic state.

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