本文關(guān)鍵詞：中國城市群交通網(wǎng)絡(luò)結(jié)構(gòu)及可達(dá)性的時空特征演變與差異研究（英文）

  更多相關(guān)文章： China megaregions transport network accessibility GIS transport network model

【摘要】：Megaregion has become a prominent feature of modern China. Reflecting upon China's recent path of transport infrastructure construction, this research examines the spatiotemporal characteristics of transport network development and its accessibility impacts in China's ten megaregions from 1982 to 2010. Using historical transport network data and multiple national censuses(1982, 1990, 2000 and 2010), we computed two levels of indicators of megaregional transport network: megaregion level and county level, and analyzed the intra-megaregion and inter-megaregion disparities of transport network of the ten megaregions of China. Transport networks at the megaregion level are measured by three indicators: 1) transport network density; 2) infrastructure endowment per capita; and 3) size of transport network's standard ellipse. Two accessibility indicators for measuring transportation network at the county level are calculated: weighted average travel time and potential accessibility. The research results show the following: 1) Road and rail network densities witnessed the greatest growth during the 2000 2010 period, and growth was more significant for railway network. 2) By 2010, average road endowments per capita in inland megaregions became higher than in coastal megaregions, while average rail endowments per capita in coastal megaregions became higher than in inland megaregions. 3) The sizes and directions of the standard deviational ellipses of road and rail network changed continuously during the study period. However the changes of road network ellipses were relatively small, while the changes of railway network ellipses were more significant. 4) Megaregions have all benefited significantly from transportation infrastructure improvement in the past few decades in terms of WATT and potential accessibility, but the three giant megaregions benefited most.
【作者單位】： School
【關(guān)鍵詞】： China megaregions transport network accessibility GIS transport network model
【基金】：Anhui Provincial Natural Science Foundation,No.1608085MG158
【分類號】：F299.2;F512
【正文快照】： 1 Introduction Megaregion has become a prominent feature of modern China.The increasingly linked metropolitan areas and the increasingly regionalized nature of Chinese economy led the Central Government to promote megaregion as a key policy framework.A

【相似文獻(xiàn)】

中國期刊全文數(shù)據(jù)庫 前2條

1 ;Accessibility opensa new world[J];China Week;2004年10期

2 ;[J];;年期

中國重要會議論文全文數(shù)據(jù)庫 前5條

1 Cohn;ellen R;;Web-based Accessibility in 2001:Representative Rehabilitation,Education and Health Related Sites[A];中國康復(fù)醫(yī)學(xué)會第四屆會員代表大會暨第三屆中國康復(fù)醫(yī)學(xué)學(xué)術(shù)大會論文匯編[C];2001年

2 Jianzhao Gao;Gang Hu;Zhonghua Wu;Jishou Ruan;Shiyi Shen;Kui Wang;;PPCinter:an improved method for prediction of protein crystallization[A];第五屆全國生物信息學(xué)與系統(tǒng)生物學(xué)學(xué)術(shù)大會論文集[C];2012年

3 ;Aims and Scope[A];中國科學(xué)院地質(zhì)與地球物理研究所2013年度（第13屆）學(xué)術(shù)論文匯編——地球深部結(jié)構(gòu)與過程研究室[C];2014年

4 ;Facile Synthesis of Ferrocenyl Substituents Spiro oxindolepyrrololine Ring Systems Under Ultrasonic Irradiation[A];中國化學(xué)會第十三屆金屬有機(jī)化學(xué)學(xué)術(shù)討論會論文摘要集[C];2004年

5 ;Phase-transfer Synthesis of Oxetanes Obtained from 1,2,2-Trisubstituted-1,3-porpanediols[A];中國化學(xué)會第四屆有機(jī)化學(xué)學(xué)術(shù)會議論文集（下冊）[C];2005年

，

本文編號：676196