Abstract:
Traffic light controller holds an important role in
maximizing traffic flow. However, normal traffic light
controller with fixed phase duration is ineffective to handle
traffic with variable density. Therefore, this paper proposes a
fuzzy logic controller to improve the flexibility of traffic light
controller in handling variable traffic density. Furthermore,
the fuzzy logic controller is optimized using Harmony Search
algorithm. The proposed fuzzy logic controller is marked by its
capability to decide which lane will have green phase. Also, it is
capable to extend and terminate a green phase or a red phase.
An observation on an intersection at Bekasi, the fifth largest
city in Indonesia, is done to provide a real case simulation for
comparing the proposed fuzzy logic controller and the existing
controller. The simulation shows that the optimized fuzzy logic
controller outperforms the existing fixed-duration controller.
