As　a　complex　system　with　various　traffic　operational　facilities,　the　overall　performance　of　urban　transportation　network　is　difficult　to　assess.　This　paper　suggests　a　methodology　of　the　macroscopic　evaluation　on　urban　traffic　condition　by　combining　two-fluid　model　and　the　probe　vehicle　data.　Map-matching　based　on　GIS　is　applied　to　calculate　total　travel　time,　running　and　stop　time　per　unit　distance,　which　resolves　the　problems　in　data　collection　for　estimation　of　model　parameters.　The　established　model　considers　a　network　to　be　assessed　as　a　whole　system　and　provides　a　reliable　and　feasible　way　to　evaluate　macroscopic　characteristic　of　urban　street　network.