The　deformity　intersection　that　consists　of　five　or　more　approaches　is　often　difficult　to　optimize　as　its　conflict　points　include　more　than　just　the　crossing.　This　paper　introduces　a　method　that　reduces　conflict　points　through　improving　channelization　and　signal　timing　based　on　existing　traffic　volume　and　organization.　In　addition,　based　on　the　method　above,　this　paper　introduces　a　complete　optimized　case.　In　the　case,　the　authors　applied　VISSIM　to　build　a　simulation　model　and　output　evaluation　index.　The　result　indicates　that　this　optimized　program　has　a　clear　improvement　on　traveling　times,　queue　length,　and　delays　as　compared　to　the　current　program.　In　conclusion,　the　optimized　methods　are　acceptable　and,　therefore,　can　be　applied　to　other　optimized　programs　of　deformity　intersections.　©　2014　American　Society　of　Civil　Engineers.