32000()3[400067]:,,:Abstract:Throughanalysingthenationalbusindustrysituationandthebusexperimentingdataduringrecentyears,theauthordiscussesthestatusquo,existingproblemsandtheirstrategiesofthereliability,safetyandenvironmentpro2tectionofthenationalbusproducts.Keywords:Bus,Reliability,Safety,EnvironmentProtection,Experiment1,,,,,,,,,,,,,,,,,,,,,,,,,,,,199512199725199834,1999440,200143ECEEEC,WTO,,,,(2000)344,,34,,,,,,,2,3669,80km,234BUSTECHNOLOGYANDRESEARCHVol123No142001©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,1,;21(km)(km)199819891612531137633126971999200025422554545950052851113,19992000199858%,28%,199920003000km19981017%2913%;2000km70%10003000km7017%,,,(1),2(km)(%)(km)(%)199810002510100021141000200035171000200053162000300014132000300014133000400021143000101740003161999100091810000100020002210100020003117200030002913200030003910300040002617300040001711400012.2400012.2:(2),(3),,,,,:(1),(),(2),,(3)(4),,(5)3311,,,,70,,ECER5120001,ECE1988,,70,5223©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,23dB(A),198219958dB(A)ECE,,2003,2003ECER51200,2003ECER5120119821988,,,3()3dB(A)200311200311M1(S9)7876M2(S9)GVM3.5t3.5tGVM5t81827880M3(S9)GVM5tP150kW8380P150kW8583N1(GVM3.5t)GVM2t2tGVM3.5t80817879N2(3.5GVM12t)P75kW75kWP150kW83858183N3(GVM12t)P150kWP150kW86888384:a)M1M2(GVM3.5t)N1,1dB(A)b),GVM2t:P150kW,1dB(A);P150kW,2dB(A)c)M14,P140kW,PöGVM75kWöt,,61kmöh,1dB(A):312,,,,,,,,,,,313,,,,,,,,,3.57.5dB(A),,44111995,43,58301337212,,,,,,;,,,,,,,412,ISO9000,4:3©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.20,,,34,,,413,,,,,,,,,,(1),,,,,,,,(2),,,(3),,,,,,,,,,,,,,,5,,,:(1)APLAC(13),WTO(2),,,,,,,(3),MTS,,,,(4)[1999]43,,,,,,,:2001207206423©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.