This　paper　proposes　two　kinds　of　signal　control　strategies　for　a　multiple-phase　signalized　intersection　modeled　as　the　switched　server　system.　Firstly,　a　class　of　switched　server　systems　is　introduced,　and　then　two　kinds　of　scheduling　policies　of　the　server,　i.e.,　priority-based　scheduling　policy　(PBSP)　and　clear-oldest-buffer　scheduling　policy　(COBSP),　are　considered,　under　which　the　switched　server　system　is　periodically　stable.　Furthermore,　the　signal　control　for　a　multiple-phase　signalized　intersection　is　modeled　as　a　switched　sever　system,　and　then　the　proposed　PBSP　and　COBSP　are　applied　to　the　steady-state　control　for　the　signalized　intersection.　At　last,　we　illustrate　our　methods　by　the　simulation　for　an　intersection.