学科分类
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8 个结果
  • 简介:ThereisnodoubtthattheurbanpublictrafficoperationsinChinasufferlossesandhenceitisnecessarytostudyresonablesubsidymechanismsfortheurbanpublictraffic.Onthebasisofanalyzingthemodesoftheurbanpublictrafficmanagement,weclassifythefinanciallossesintothepolicylossandthemanagementloss,accordingtowhetherthecostcanbecompensatedornot.Inaddition,aseriesofcriteriaareintroducedinordertoefficientlydecidetheamountofsubsidy.Finally,thispaperalsoexaminesthewayofbiddingadministration,whichisconsideredtobepromisinginthefutureofurbanpublictraffic.

  • 标签: URBAN PUBLIC TRAFFIC POLICY LOSS MANAGEMENT
  • 简介:Thispaperanalysestheoreticallytheeffectoftransportationandhousingsubsidiesonurbansprawl,modalchoicedecisionsandurbanspatialstructureusingaspatialgeneralequilibriummodelinamonocentriccitywithtwotransportmodes.Ouranalysisshowsthatpublictransitsubsidyleadstourbanshrink,whilstsubsidizingautomobileandhousingmakethecitysprawl.Wealsofindtheeffectsoftheotherfactorsonurbansprawl,suchashouseholdsincomeanddemand,rurallandrent,theincometaxrate,thetotalfixedcostofpublictransitandautomobileandthetravellingmarginalcostofpublictransitandautomobile.Furthermore,thispaperalsostudieshowtomaximizetheurban-area-widespatialequilibriumutilitylevel.

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  • 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:Asthepaceofurbanizationisaccelerating,increasingamountoffloodplainhasbeenprojectedasthefuturecities.Subsequently,urbanfloodingisbeingstudiedbyglobalemergencymanagementexportsduetoitsincreasinglysignificantimpactonus.Someexistingresearchonfloodingemergencymanagementbasedonthecase-basedreasoning(CBR)methodhavemadetremendousprogress,buttheurbanfloodingcasewithitsstratifieddatacharacteristicsisrequiredanewmethodologywhichisdifferentfromtheonesappliedtoflashfloods.So,basedonthecase-basedreasoning(CBR)method,thispaperproposedaCPIE-CBRmodelwithfourlayers,classificationfiltration,punctiformsimilarity,intervalsimilarityandentropyweightmethod,tocalculatethecasesimilarityamongtheurbanfloodingcasewithstratifieddatacharacteristics.ThenwecarryoutthenumericalsimulationwiththerealdataaboutChinaandconductsomecomparisonwithoriginalwayssothatweobservethevalidityandefficiencyofourmodelintheend.

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  • 简介:城市的总线网络的多客观的优化能帮助改进运输系统的操作效率并且为在中国减少城市的交通拥挤开发策略。工作使用了累积前景理论,当前为在无常下面的决定的最有影响的模型,优化城市的公共汽车网络。完成研究目的,工作开发了城市的总线网络优化,包括的优化原则,优化目的和限制的理论框架。而且,优化目的能包括地从时间,空间和价值的尺寸反映旅客和总线公司的期望。它在以前的研究独自与仅仅一个股东或尺寸相比更科学、合理。另外,为由到理想的答案TOPSIS的类似的顺序偏爱的技术被用来决定积极、否定的理想的选择。在优化选择和理想的选择之间的关联被灰关系分析同时估计。累积前景理论CPT被用来由比较每种选择的全面前景价值决定最好的选择,精确地在实际生活与期望的用途理论相比描述决策行为。最后,Xian的大小写证明方法能更好调整总线网络,并且优化解决方案是更合理的满足实际需要。

  • 标签: 多目标优化 城市公交 公交网络 累积 逼近理想解 TOPSIS
  • 简介:Thestudyofhumanmobilitypatternsisofboththeoreticalandpracticalvaluesinmanyaspects.Forlong-distancetravel,afewresearchendeavorshaveshownthatthedisplacementsofhumantravelsfollowapower-lawdistribution.However,controversiesremainregardingtheissueofthescalinglawsofhumanmobilityinintra-urbanareas.Inthiswork,wefocusonthemobilitypatternoftaxipassengersbyexaminingfivedatasetsofthreemetropolitans.Throughstatisticalanalysis,wefindthatthelognormaldistributionwithapower-lawtailcanbestapproximateboththedisplacementandthedurationtimeoftaxitripsinalltheexaminedcities.Theuniversalityofthescalinglawsofhumanmobilityissubsequentlydiscussed,inviewoftheanalysisofthedata.Theconsistencyofthestatisticalpropertiesoftheselecteddatasetsthatcoverdifferentcitiesandstudyperiodssuggeststhat,theidentifiedpatternoftaxi-basedintra-urbantravelsseemstobeubiquitousovercitiesandtimeperiods.

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