With　the　number　of　motor　vehicles　rapidly　increasing,　urban　parking　has　become　an　intolerable　problem　in　major　cities　in　China.　Parking　facility　service　evaluations　play　an　important　role　in　urban　transportation　planning　and　operation.　This　paper　introduces　a　level　of　service　(LOS)　concept　based　on　a　comprehensive　parking　study　in　Beijing,　China.　The　LOS　methodology　developed　by　an　integrated　evaluation　model　reflects　the　user＇s　perception　of　the　quality　of　service.　The　method　combines　four　important　service　variables,　namely　the　ratio　of　peak-hour　demand　to　capacity,　average　parking　space　occupying　rate,　parking　cost,　and　circulation　time,　into　one　single　index　to　quantitatively　evaluate　a　parking　facility＇s　performance.　©　2012　IEEE.