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国际多式联运与集装箱运输.doc

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国际多式联运与集装箱运输4.1TheNatureofIntermodalismCompetitionbetweenthemodeshastendedtoproduceatransportsystemthatissegmentedandun-integrated.Eachmodehassoughttoexploititsownadvantagesintermsofcost,service,reliabilityandsafety.Carrierstrytoretainbusinessbymaximizingtheline-haulundertheircontrol.Allthemodessawtheothermodesascompetitors,andwereviewedwithsuspicionandmistrust.Thelackofintegrationbetweenthemodeswasalsoaccentuatedbypublicpolicythathasfrequentlybarredcompaniesfromowningfirmsinothermodes(asintheUnitedStatesbeforederegulation),orhasplacedamodeunderdirectstatemonopolycontrol(asinEurope).Modalismwasalsofavoredbecauseofthedifficultiesoftransferringgoodsfromonemodetoanother,therebyincurringadditionalterminalcostsanddelays.Intermodalismoriginatedinmaritimetransportation,withthedevelopmentofthecontainerinthelate1960'sandhassincespreadtointegrateothermodes.Itisnotsurprisingthatthemaritimesectorshouldhavebeenthefirstmodetopursuecontainerization.Itwasthemodemostconstrainedbythetimetakentoloadandunloadthevessels.Aconventionalbreakbulkcargoshipcouldspendasmuchtimeinaportasitdidatsea.Containerizationpermitsthemechanizedhandlingofcargoesofdiversetypesanddimensionsthatareplacedintoboxesofstandardsizes.Inthiswaygoodsthatmighthavetakendaystobeloadedorunloadedfromashipcannowbehandledinamatterofminutes.FirstContainership,Ideal-X,1956OnApril26th1956,theIdeal-XleftthePortofNewark,NewJerseytothePortHouston,Texas,whichitcalled5dayslater.Itcarried5835-feet(8feetwideby8feethigh)containers,alongwitharegularloadof15,000tonsofbulkpetroleum.The35feetunitrepresentedatthattimethestandardtrucksizeintheUnitedStates.ThisfirstcontainershipwasconvertedundertheinitiativeofMalcomMcLean(1914-2001),atruckingmagnatewhosawthetremendouspotentialofcontainerization,particularlyintermsofloadingandunloadingcosts.McLeancalculatedthatin1956loadingamedium-sizedshiptheconventionalwaywascosting$5.83aton.Comparatively,loadingtheIdeal-Xwascostinglessthan$0.16aton.Theeconomicadvantagesofsuchamodeoftransportationthusbecame