从城市交通规划发展看城市交通可持续发展规划

:2003204213.:(19722),,;,(210096)1:(5983810)111(1.,210096):,.,,,,.:;;:TU984.191:A:100025730(2003)03200112051,50,70[1].[2],.,.,4,[2].,,,;,,;,.,.16,.,,,,-...50,,.1962,.60,,,.,,.70,,.,.80,,,,,,,,20320039()J.ofHUST.(UrbanScienceEdition)Vol.20No.3Sep.2003©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.[3].90,,,.,.,,,.2,.,,,,,.,,,.a..,,,.,.b..,5060,.,,.c..,,,.,,,,.d..,,,.,,,,.e...,;.,.f..,,.,,.g..,.,,,.33.1,,,[4].,.,:.,21()2003©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,.,,:,,,,,.,,();,;,.3.2,,,,,,.,,(1).1,.,.,.a.,,.b..c.,.d..e.,,.f..g..h..4,,,,(2),.2.,313:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,.,GIS.,...,,.,,,.,,.,.(),.;,;,.,,.,.,.,.,.,,,.55.1,,,,,,2050..5.2,.,,520.41()2003©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved..5.3,,15,..,,.,,;;,..,,,,.[1].[M].:,1998.[2].[M].:,1998.[3],.[M].:,1996.[4].[M].:,1997.UrbanTransportationSystemSustainedDevelopmentPlanningBasedonUrbanTransportationSystemPlanningHistoryLUJian1WANGWei1(1.CollegeofTraffic,SoutheastUniv.,Nanjing210096,China)Abstract:Thehistoryofurbantransportationplanningdevelopmentandthetraditionalshortcomingsofplanningareanalyzed.Onthebasisofsustaineddevelopmenttheory,theprinciplesofurbantrans2portationsystemsustaineddevelopmentplanningareproposedandatheoreticalsystemofurbantrans2portationplanningwhichshouldsatisfydemand,optimiumresourcesutilizationandimprovementofenvironmentqualityisdesigned.Thefunctionofeachindividualmoduleinthesystemisdesigned.Thearrangementofsustaineddevelopmentplanninghasalsobeenmentioned.Keywords:urbantransportationsystem;sustaineddevelopment;planning(4)OptimizationDesignofDiscreteVariablesforReinforcedConcreteFramedStructuresDUTai2sheng1HUANGRong2jie1SONGTian2xia1CHENChuan2yao1(1.SchoolofCivilEng.&Mechanics,HUST,Wuhan430074,China)Abstract:Basedontheconventionaldesignandcalculationmethod,apracticalcalculationmodelises2tablishedfortheoptimizationdesignofdiscretevariablesofthereinforcedconcreteframedstructures.Inlightofthecharacteristicofthemodel,anewrotationmethodofdiscretevariableisproposed.Thenumericalexamplesshowthattheproposedmethodcanobtainthemosteconomicaloptimalplan.Keywords:reinforcedconcrete;frame;optimizationdesign513:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.