Improved SAGACIA Algorithm and Dissymmetry Traffic Signal Timing Optimiz ation
CAO Xiushuang
Abstract：Aiming at the asymmetric traffic flow of urban intersection ,the traffic jams appear easily in the direction of heavy traffic when symmetrical signal timing is used .The asymmetric phase of intersection is used by lap phrase .The aver-age vehicle delay is adopted as the control objective .The phase green times and cycle time are the control variables ,which are optimized through improved SAGACIA algorithm .According to the traffic flow data of a practical intersection ,the simula-tion is executed with Matlab .The simulation results show that SAGACIA algorithm can reduce the average vehicle delay ef-fectively compared with genetic algorithm and Webster .SAGACIA algorithm has better search capability and search accura-cy ,which is helpful to achieve superior green timing plan .
Keywords：SAGACIA algorithmdissymmetry timinglap phrasedivision of time
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1176-1180 )