1、 Y. 2 Z李本纲, 陶 澍(v g“, 100871)K1: Y. 2 O1 I ny $ , S = Y. 2 KZbs Z i5,i) B 2 5 ?ZZ_b1oM: Y;. 2; ms |: X32 DS M : A cI|: 1001 -6929(2002)02 -0056 -04Progress in Road Traffic Noise Prediction Model StudyLIBen-gang, TAO Shu( Dept.of Urban noise; prediction modell : 2001-08- 13 “:SE1 S “(49901016);SE1 S
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4、 2“d,i L=TQ30 ;0 y a u gY. 2,i g L=31b2 Y i5 Y. 2 ,K1 ,B (?RMSV UbFHWA Leq- 0.8? 2. 0 dB,CRTN88 L100.2? 2. 0 dB1, 3bCY 1 aS JbFH-WA I n # 2 ;, A.1 SFHWA . 2 T+5J.,1992, 10(2):41-44.14 p . SFHWA . 2 T )J., 1995, 13(3): 41 -45.15 ,f, n ,. g Y. 2ZEJ. S,1999, 25(3): 42 -48.16 . , q,I . FHWA T u Y. 2J. ,
5、2000, (3):32-33.17 l.S1 2 l LlJ., 1994, 12(1): 29-33.18 -,.s Z . s !9J. , 1999, (5):70- 72.19 . 2 p 9 J. 2 e.1999, (5): 23 -24.20 Wu Shuoxian. An approximately extended traffic noise prediction for-mulabased on an exponentially distributed vehiclesmodelJ. AppliedAcoustics, 1989, 26(1): 25 -31.21 :,
6、Kittinger E. I n 2 Y. 2 J. S, 1996, 16(5): 364-371.22 X,Z , Y. 2 gy.l? p)J.S S,1987, 7(6): 22 -26.23 o . gY. 2)1M1# q sJ. S, 1989, 10(5): 72-77.24 0 , , ,. O Y. 2sJ. S,1994, 15(2): 24 -28.25 j, k. gOa BY. 2 J.SS,1999, 15(2): 47 -50.58 S 15 26 f? , :. * Y. 2J. S, 1998, 18(5): 471-476.27 S . “d gY. 2
7、1 sJ.S S,1996, 16(1):56- 59.28 Z!,1 Z, ,. Y. 2 # J. S, 1989, 10(6): 62 -66.29 ;,(c,u ,. YY N J. S, 1999, 25(6): 37 -41.30 , Z,K . Y. 2 N)J. , 1999, (3): 55 -58.31 0 , . Y. 2sJ. S, 1991, 12(2): 38-41.32 Hood R A. Accuracy of calculation of road traffic noiseJ. AppliedAcoustics, 1987, 21(2): 139-146.(
8、上接第55页) bZ,21 Wv l1 m5 U,+ /: T F b M9F(A1C,A1G,A2),v l1 | 9F,v1 bi%v , Pv CO28s F ; T F ? Mh (A1T,A1B,B1) ,v l1 5 /, N$ ?V o L V?ZZ,521 W Pv CO28s C/ t ( B1) ; T F P C , 9 q v( 0. 1 10-6tPa),7 O uS =6 V?Z( B2) ,* v l1 9C/ t bm5 21 W bZv l1 Fig.5 The portion of the anthropogenic sourceabsorbed by th
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10、, P F b / ;1 Pv CO28s 21 WC/ t ,AV r b ID: 1 Raynaud D, JouzelJ, Barnola J M, etal.The ice core record ofgreen-house gasesJ. Science, 1993,259: 926 -934. 2 IPCC. Emission ScenariosDBPOL. http:PPwww. grida. noPclimatePipccPemissionPindex. htm, 2001. 9. 3 IPCC. Emission ScenariosDBPOL. http:PPwww. gri
11、da. noPclimatePipccPemissionP164. htm, 2001. 9. 4 KheshgiH S, Flannery B P,Hoffert M I.Marine Biota effects on thecompositional structure of theworld oceansJ. J Geophys Res, 1991,96: 4957-4969. 5 TimothyM L. Land and ocean carbon cycle feedback effects on globalwarming in a simple earth system model
12、J. Tellus, 2000, 52B: 1159-1188. 6 GISS. Greenhouse Gas Mixing Ratio DBPOL. http:PPwww. giss.nosa. govPdataPsi99PghgasesPCO2+ CH4+ N2O. txt, 2001. 7. 7 Wigley T M L. Balancing the carbon budget: Implications for projec-tions of future carbon dioxide concentration changesJ. Tellus, 1993,45B: 409-425.592 : Y. 2 Z
