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1、土木工程概论IntroductiontoCivilEngineering第五章 交通、桥梁与港口工程Chapter5Transportation,BridgeandharborEngineeringTransportationEngineeringWhatisTransportationEngineering?Thetransportationsystemisabasiccomponentofanyarea'sphysical,economic,andsocialstructure.Notonlydoesthedesignandperformanceoft
2、hetransportationsystemprovideopportunitiesformobility;butoverthelongterm,itinfluencespatternsofgrowthandthelevelofeconomicactivitythroughtheaccessibilityitprovidestheland.WhatisTransportationEngineering?ThefieldofTransportationEngineeringfocusesontheplanning,design,construction,an
3、dmanagementoftransportationsystems.Thesesystemsconsistofthefacilities,vehicles,controlmechanisms,andthepoliciesthatcombinetopermittheefficientconveyanceofpeopleandgoods.Designshighwaysystems(layout,routing),pavementmaterial,airportrunways,andrapidtransitprojects.Alsoinvolvedincomp
4、utercontroloftrafficsignals.TransportationEngineeringWhatisTransportationEngineering?Itcontainstheplanning,design,construction,maintenance,andoperationofair,highway,andurbantransportation,aswellaspipelinefacilitiesforwater,oil,andgas.Specifictopicsincludeairportandhighwaypavementm
5、aintenanceandperformance.Transportationsystemsincludehighways,roads,railways,inlandwaterwaysandairways.TransportationEngineeringTheimportanceoftransportationnetwork:Itisnecessaryforeconomic,culturalandsociallifeofpeopleofacountry.Themovementofpeopleandgoodscanonlybepossiblewithago
6、odtransportationnetwork.Tradeandcommercedependonthetransportationsystem.Thesecurityofacountryrequiresagoodtransportationnetwork.Thestateofadvancementofcountryisreflectedbythedevelopmentofthecountry’stransportation.TransportationEngineeringHighways:Highwaysareconsideredthemostimpor
7、tantsystembecauseofthefollowingadditionalreasons:TheycanbeusedbyallkindsofvehiclesTheyreachallplaces,hillstotinyvillagesHighwayscanbelaidaspereconomicconditionsandasperimportancefrommudroadstoconcreteroadsAchangeinspecificationfromanordinarytoanimprovedversioncanbeeffectedwithease
8、TransportationEngineeringClassifi
