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  • 简介:ThispapershowsanumberofproblemsinpureandappliedmathematicsthataresolvedbyconstructingtransportationnetworksMoreover,italsoshowsthatallthesolutionsarecharacterizedbyforbiddenconfiguratlozzwhicharenotminors.However,allthecharacterisationsaremuchrelatedtothegraphicmethodwhichwasfoundbyChineseforsolvingakindofthetransportationprobleminthefifties.

  • 标签: 运输网络 图论 顶集 边集 非循环路径
  • 简介:Inthispaper,wepresentanalgorithmforsolvingaclassoftransportationproblemsandshowthatitisgloballyconvergent.Thepropsedalgorithmissimpletoimplementandeasytoparallelize.Thenumericalresultsindicatethattheproposedalgorithmiseffectiveforthisclassofproblems.

  • 标签: 传输 整体收敛 算法 整数
  • 简介:Theobjectiveofthisresearchistodeterminetheeffectearthquakeshaveontheperformanceoftransportationnetworksystems.Todothis,bridgefragilitycurves,expressedasafunctionofpeakgroundacceleration(PGA)andpeakgroundvelocity(PGV),weredeveloped.Networkdamagewasevaluatedunderthe1994Northridgeearthquakeandscenarioearthquakes.Aprobabilisticmodelwasdevelopedtodeterminetheeffectofrepairofbridgedamageontheimprovementofthenetworkperformanceasdayspassedaftertheevent.Asanexample,thesystemperformancedegradationmeasuredintermsofanindex,"DriversDelay,"iscalculatedfortheLosAngelesareatransportationsystem,andlossesduetoDriversDelaywithandwithoutretrofitwereestimated.

  • 标签: FRAGILITY CURVES seismic RETROFIT PROBABILISTIC model
  • 简介:Urbantransportationiscloselyrelatedtolanduse.Thechangesoftransportationcostandaccessibilityhaveadirectimpactonlanduseandlandprices.Landexploitationandlanduseplayaroleofredistributingtrafficflowintheurbandistricts.]Realpropertyvaluesareregardedasasolecomprehensiveindexrepresentingallthebenefitsgeneratedbytransportinvestment.Wehaveappliedthetheoryoftimevalueontransportationtolandpricemodeltoevaluatetheincreasedvalueofrealestateresultingfromimprovedaccessibility.Agencyresponsibleforthedevelopmentofurbantransportinfrastructurecancapturepartofthefinancialbenefitgainedbyrealestatedevelopmentthroughavarietyofvaluecapture.Thisenablesustotransferindirectbenefitoftransportinfrastructureconstructiontotransportenterpriseandachieveabenigncyclebetweenurbantransportinvestmentandlandexploitation.

  • 标签: URBAN tranaportation Real estate Joint development
  • 简介:ThemaineffectfactorofBeijingurbanpublictransportationticketpricesystemfoundationisanalyzedbyapplyingsystemanalysismethod.Feasibleschemeofpublictransportationticketpricesyscemisproposed.3implementedschemeofpublictransportationticketpricesystemisvaluedbyapplyingfuzzymethod.

  • 标签: 旅游业 北京 城市公共运输 票价 信息系统
  • 简介:参考译文:李先生和黄先生在谈论展品运输事宜。李先生:我们什么时候可以把展品运到世贸中心?黄先生:开展前两天吧。今年你需要我们代理运输展品吗?李先生:那样当然好。今年的运输代理商要直接到公司仓库,将展品运到展场,展览结束后,再将展品运回来。黄先生:那么这中间可能牵涉到公路和铁路运输两方面,你们可要早做安排。李先生:我们会注意这个问题的,我们会提前将展品准备好。黄先生:我们会将你的展品准时运到。李先生:谢谢!

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