( 3 ) according to system science theories and the function principles , the thesis defines the pavement structure performance . and choose the five token road indexes which stand for pavement usage functions , namely road structure strength index ( rssi ) , road quality index ( rqi ) , pavement function condition pfc or sfc , pavement condition index ( pci ) and pavement environment index ( pei ) , and discuss various indexes rating standard . in a word , the study and evaluation of pavement performance was established systematically , which provide a fundamental theory for the pavement management ( 3 )依據(jù)系統(tǒng)科學(xué)理論和功能原理,對路面結(jié)構(gòu)使用性能進(jìn)行了定義:確定了表征路面結(jié)構(gòu)使用性能的五項(xiàng)指標(biāo),即路面承載能力系數(shù)rssi 、路面行駛質(zhì)量指數(shù)尺rqi 、路面行駛安全性能指數(shù)pfc或sfc 、路面破損狀況指數(shù)pci和路面環(huán)境性能指數(shù)pei ,并討論了各項(xiàng)指標(biāo)的測定和分級標(biāo)準(zhǔn),為路面結(jié)構(gòu)使用性能的系統(tǒng)研究奠定了理論基礎(chǔ)。