资源描述：
《中国区域交通优势度评价_网络密度_邻近性及可达性_英文_》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、J.Geogr.Sci.2010,20(2):295-309DOI:10.1007/s11442-010-0295-6©2010ScienceinChinaPressSpringer-VerlagChina’sregionaltransportdominance:Density,proximity,andaccessibilityJINFengjun,WANGChengjin,LIXiuwei,WANGJiao’eInstituteofGeographicSciencesandNaturalRe
2、sourcesResearch,CAS,Beijing100101,ChinaAbstract:Transportinfrastructureplaysanimportantroleinshapingtheconfigurationofspa-tialsocio-economicstructuresandinfluencesregionalaccessibility.Thispaperdefinestransportdominancefromthreeaspects:quality,quanti
3、ty,andadvantage,measuredbyden-sity,proximity,andaccessibilityindices.Countyisthebasicunitforanalysis.Theresultsreveal:(1)Transportdominancestatisticallyfollowsapartialnormaldistribution.Averyfewcounties,1.4%ofthetotal,haveextremelyhightransportdomina
4、ncewhichstronglysupportsthesocio-economicdevelopmentintheseareas.Incontrast,oneeighthofallcountieshavepoortransportdominancewhichimpedeslocalsocio-economicdevelopmenttosomeextent.Theremainingareas,about70%ofthecounties,havemediantransportdominance.(2
5、)Transportdominanceisspatiallyunevenlydistributed,withvaluesdecreasinggraduallyfromthecoastalareatotheinlandarea.Areasinthefirst-highestleveloftransportdominancearemainlyconcentratedintheYangtzeRiverDelta,theGreaterBeijingarea,andthePearlRiverDelta.A
6、reasinthesecond-highestlevelarefocusedinChengdu,Chongqing,andWuhanmetropolitanareas.Provincialcapitalsandafewothercountiesbelongtothethird-highestlevel.Keywords:transportdominance;density;proximity;accessibility;China1IntroductionTransport,whichguide
7、sandsupportsthesocio-economicdevelopment,isanimportantin-dicatortoevaluatethedevelopmentconditionsforaregion.Also,transportplaysacrucialroletoshapearegion’sspatialstructureandaffectsitsaccessibility.Withlongconstructionanddevelopment,China’stransport
8、networkhasbeengraduallyimprovedandregionaldis-parityappeared.First,thelinelengthoftransportnetworkhasreachedaconsiderablescale.6Bytheendof2005,thetotalmileageofChina’stransportnetworkhadreached2.1×10km,46with7.54×10kmofrailwayand1.93×10kmofhighway.Me
