长江流域资源与环境 >> 2013, Vol. 22 >> Issue (11): 1264-.

• 区域可持续发展 • 上一篇    下一篇

高速铁路对沿线地区可达性的影响研究——以皖北地区为例

何 丹| 杨犇   

  1. (1.华东师范大学中国现代城市研究中心|上海 200062; 2.上海同济城市规划设计研究院|上海 200092)
  • 出版日期:2013-10-20

IMPACT OF HIGHSPEED RAILWAYS ON ACCESSIBILITY——A CASE STUDY OF NORTH ANHUI

HE Dan1| YANG Ben2   

  1. (1.The Center for Modern Chinese City Studies|East China Normal University|Shanghai 200062|China;2.Shanghai Tongji Urban Planning &|Design Institute|Shanghai 200092|China
  • Online:2013-10-20

摘要:

区域交通可达性的改变是高速铁路对区域发展的最直接影响。在GIS技术的支持下,以皖北地区为实证研究对象,利用日常可达性、加权平均时间等指标分析了在有无高铁两种情景下皖北地区的可达性空间格局变化。结果表明:高铁开通后,皖北区域内部可达性和区域外部可达性均获得了较大提升,但区外可达性的改善要优于区内可达性;皖北整体可达性空间格局没有因高铁发生大的改变,可达性空间分布呈现的区域交通主干道指向性特征在高铁通车后更为明显;可达性改善的地区分布并不均匀,不同地区可达性受惠程度不一,皖北整体以及各城市内部的可达性均衡性程度都在降低,两极分化趋势在加剧

Abstract:

In the approaching Highspeed Rail age,transportation accessibility has the direct impact on the regional development.Taking North Anhui as an example,this paper tries to evaluate accessibility in North Anhui and analyze the differences in spatial patterns with and without highspeed railways.Based on GIS,the evaluation of accessibility is conducted with indicators like isochronous ring,daily accessibility and timeweighted average.And also,the influences of the highspeed railways on cities in North Anhui are taken into consideration.Comparing different transportation conditions in 2009 and 2012,the result shows as follows.Firstly,highspeed railways substantially improved accessibility in North Anhui with isochronous rings expanded and significant optimization of urban daily accessibility realized.The improvements in external accessibility were more prominent than in internal accessibility,meaning the closer relationship with central cities outside North Anhui like Nanjing by shortening commuting time.Secondly,slighter change took place toward the whole accessible spatial pattern with the appearance of highspeed railways,but directional characteristics of traffic mainline became more apparent with highspeed railways built and highspeed railway corridor would be more and more obvious.Thirdly,highspeed railways reduced the equilibrium of accessibility both in North Anhui and within city,leading to the wide gap of accessibility,which means cities nearby benefit more than those far away.Furthermore,cities along the highrailway line possessed an apparent advantage in time.There was considerable variety in quantities to other cities available in one day for cities along the line, while little for others.Highspeed railways brought more opportunities to cities nearby like Bengbu and Chuzhou,but might get cities like Fuyang and Huizhou marginalized,which would lead to disturbance of equilibrium.To conclude,combining with the characters of highspeed railways,fast but fewer stops,it is necessary to upgrade the highspeed railway transportation system,especially on the construction of highspeed intercity railway system. In this way,it can not only enlarge the service range,but also reduce differences in external transportation between cities with highspeed railway passing by and cities without highspeed railways,which benefits both highspeed railways and regional development nearby.It is suggested that cities in North Anhui share the resources of highspeed railways in the area of transportation planning,construction and management.Cities without highspeed railway stations like Huizhou,Fuyang,etc.should optimize their own transportation network and strengthen the relationship with cities like Bengbu,Huainan,etc.in highspeed railway network for better accessibility.And cities with highspeed railway stations like Bengbu should enhance their internal transportation network level and play an important role of highspeed railways in North Anhui.Besides,cities like Huainan,Chuzhou,etc.which is adjacent to big cities,should accelerate highspeed railway docking procedures in order to carry forward the construction of intercity highspeed railways

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