基于GIS的综合交通可达性评价——以甘肃省为例
|
摘要
应用GIS技术,使用可达性这一指标,对甘肃省综合路网进行评价研究;运用成本栅格算法,计算甘肃省任一县级行政区到达兰州的最小时间成本距离,和省内任一节点到距离其最近县域行政区内的最小时间成本距离,揭示了甘肃省城镇可达性空间分异规律,从而进一步得到基于综合路网的甘肃省城镇的可达性空间格局。研究表明,以兰州市为中心的道路网可达性指标很高,但尚未形成一小时交通圈,各县区到兰州的可达性基本与距离成正比。任意点至其最近的县域行政区域都可以在20分钟内到达。但甘肃省交通水平较低,应建设各种等级道路,完善路网,增加可达性水平。
By applying GIS and using the index of accessibility to evaluate the comprehensive road network in Gansu Province; using the cost of grid algorithm to calculate the minimum time cost distance from any countylevel administrative region in Gansu Province to Lanzhou, and The minimum time-cost distance from a node to its nearest county administrative area reveals the spatial distribution in Gansu Province, and then obtains the accessibility spatial pattern of Gansu Province based on integrated road network. The research shows that the road network accessibility index centered on Lanzhou City is very high, but it has not yet formed a one-hour traffic circle. The accessibility of each county to Lanzhou is basically proportional to the distance. Any point to its nearest county administrative area can be reached within 0.35 hours. However, the traffic level in Gansu Province is relatively low, and various grades of roads should be built to improve the road network and increase the accessibility level.
By applying GIS and using the index of accessibility to evaluate the comprehensive road network in Gansu Province; using the cost of grid algorithm to calculate the minimum time cost distance from any countylevel administrative region in Gansu Province to Lanzhou, and The minimum time-cost distance from a node to its nearest county administrative area reveals the spatial distribution in Gansu Province, and then obtains the accessibility spatial pattern of Gansu Province based on integrated road network. The research shows that the road network accessibility index centered on Lanzhou City is very high, but it has not yet formed a one-hour traffic circle. The accessibility of each county to Lanzhou is basically proportional to the distance. Any point to its nearest county administrative area can be reached within 0.35 hours. However, the traffic level in Gansu Province is relatively low, and various grades of roads should be built to improve the road network and increase the accessibility level.
引文
[1] Hansen W G How accessibility shapes land-use[J].Journal of the American Institute of planners, 1959(25):73-76.
[2]杨勉,魏庆朝.确定线路可达性等级的方法研究[J].铁道工程学报2008(7):18-35.
[3]李平华,陆玉麒;刘腾贤.可达性研究的回顾与展望[J].地理科学进展2005(3).
[4]刘腾贤.空间可达性研究综述[J].城市交通,2007,5(6):36-43.
[5]张野,韩峰.基于GIS的西北地区铁路路网扩张规律研究[J].铁道标准设计2017,61(10):57-60.
[6]沈惊鸿,陆玉麒,兰小机,刘德儿.区域综合交通可达性评价[J].地理研究2012,31(07):1280-1293.
[7]刘俊,陆玉麒.江苏省公路交通网络可达性评价研究[J].南京师大学报:然科学版,2008,31(3):129-134.
[8]王先鹏,戚红年,曹荣林.基于GIS的县域交通网络可达性探讨[J].地理空间信息,2009,7(5):109-113.
[9]李亚婷,秦耀辰,潘少奇.基于GIS的交通网络可达性评价方法研究[J].云南地理环境研究,2007,19(6):99-104.
[10]陈洁,陆锋,程昌秀.可达性度量方法及应用研究进展评述[J].地理科学进展,2007(5).
[2]杨勉,魏庆朝.确定线路可达性等级的方法研究[J].铁道工程学报2008(7):18-35.
[3]李平华,陆玉麒;刘腾贤.可达性研究的回顾与展望[J].地理科学进展2005(3).
[4]刘腾贤.空间可达性研究综述[J].城市交通,2007,5(6):36-43.
[5]张野,韩峰.基于GIS的西北地区铁路路网扩张规律研究[J].铁道标准设计2017,61(10):57-60.
[6]沈惊鸿,陆玉麒,兰小机,刘德儿.区域综合交通可达性评价[J].地理研究2012,31(07):1280-1293.
[7]刘俊,陆玉麒.江苏省公路交通网络可达性评价研究[J].南京师大学报:然科学版,2008,31(3):129-134.
[8]王先鹏,戚红年,曹荣林.基于GIS的县域交通网络可达性探讨[J].地理空间信息,2009,7(5):109-113.
[9]李亚婷,秦耀辰,潘少奇.基于GIS的交通网络可达性评价方法研究[J].云南地理环境研究,2007,19(6):99-104.
[10]陈洁,陆锋,程昌秀.可达性度量方法及应用研究进展评述[J].地理科学进展,2007(5).