EXPLORE THE RELATIONSHIP BETWEEN STATION RANK SETTING AND ITS SURROUNDING URBANIZATION OF YUNNAN-VIETNAM RAILWAY

Yunnan-Vietnam railway is the first railway in Yunnan province,and the same to South-western area of China.The earliest and maybe the most notable urbanization process in Yunnan province occurred in those decades before the Yunnan-Vietnam railway operated and thereafter.There are five ranks of station(first class station,second class station,third class station,and small station)along the railway and the urbanization rate of those areas surrounding each rank of station was so different.According to the high rank of stations in each country/city along the railway,the study area was divided into five regions ofⅠ,Ⅱ,Ⅲ,Ⅳ,andⅤ.General population indices used in urbanization study,such as population change,increase rate,and population density were selected to evaluate the urbanization level in the study.Results showed that population in five regions were all increasing from 1910 to 1932 but the increasing extent was different from each other.Population change was prominent in regionⅠ and the rate of population growth reached higher to 214.5%,far more than other regions(all lower than 100%).Even the population was the most for regionⅤ in 1910,the increasing rate was the lowest(only 27%).Other three regions of Ⅱ,Ⅲ,and Ⅳ had the similar population growth rate(69.1%,76.6%,73.2%).For the relationship of station rank and population density,the special class stations setting do have some positive effect while other ranks of station seems no good relationship on account of their own historical development.In conclusion,special class stations had notable influence while small class stations had little effect on its surrounding urbanization.First class stations,second class stations,and third class stations had similar effect on its surrounding urbanization for each particular character of the country the station related to.