As　urban　bottleneck　sections　are　important　reasons　that　contribute　to　urban　traffic　congestion,　the　effective　solutions　for　them　can　greatly　ease　traffic　congestion.　After　the　convey　of　the　present　traffic　and　traffic　flow　of　the　Ba　Liqiao　segment　of　the　Latitude　12th　Road,　which　is　the　typical　bottleneck　section,　the　paper　puts　forward　the　optimization　program　and　uses　VISSIM　to　simulate　the　Ba　Liqiao　segment　of　Latitude　the　12th　Road　of　Jinan　City.　The　optimized　evaluation　results　of　this　bottleneck　section　are　given　out.