区域铁路网可达性模型研究及应用

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1、北京交通大学硕士学位论文区域铁路网可达性模型研究及应用姓名：杨勉申请学位级别：硕士专业：道路与铁道工程指导教师：魏庆朝20080501ABSTRACTABSTRACT：Railwaytransporthasalwaysbeentheskeletonofthecomprehensivetransportinourcountry,andhasplayedanimportantroleinregionaleconomicdevelopmentandurbandevelopment．Atpresent，China'srailwayconstructionISun

2、deragoldendevelopingperiod，withtheconstructionscale，speedandstandardsabsolutelyrareinworldwide．However,therelatedtheoreticalresearchesofrailwaynetworkplanhavelaggedfarbehindtheconstructionspeed，suchasthescaleoftherailwaynetwork，detailedlayouts，gradeconfiguration，theconstructionsc

3、hedule，andmanyotherbasicproblems，allhavenoaccurateandsystematicapproachestosolveyet，whichhasbroughtgreatobstaclestothesustainabledevelopmentofrailwaynetworkandcausedtremendouswasteofresourcesandfundsofthenation．Thus，studyontheoriesabouttherailwaynetworkplanisacrucialandurgentwork

4、withgreatpracticalsignificance·Inthispaper,theoriesofcommunicationlocationandeconomicgeographyareprovideasthebasicofregionaltransportnetworkanalysis，andfractaltheoryandgraphtheoryasbasicofrailwaynetworkmodel．Thecommunicationlocationtheoryisexpatiated，includingtheanalysisofgenerat

5、ion，functionandgradeofregionaltransportnetwork．transportnodesandlines．Accordingly,theaccessibilityiscontributedastheessentialattributeSofthecitiesandlinesmakingupoftherailwaynetwork．Theaccessibilityindexesaredefinedandtheaccessibilitymodelofregionalrailwaynetworkisestablished，bot

6、hareusedasthequantitativeindicatorsandmethodstotheregionalrailwaynetworkanalysisandresearch．Theaccessibilitymodelofregionalrailwavnetworkiscomposedoftwoparts，thecityaccessibilitygrademodelandthelineaccessibilitygrademodel，whichrespectivelyreflecttherelationshipbetweentheregionalr

7、ailwaynetworkconstructionandurbandevelopmentandtherolesoflinesplayinginthenetwork．Inthispaper,theapplicationofthemodelswebuiltuptotheNortheastrailwaynetwork，withdetailedanalyzingandcalculating，verifiedthepracticabilityofthem．Theaccessibilitymodelestablishedinthepapercanbeusedasaq

8、uantitativeestimatingmethodandthebasisfo