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[目的]探讨柳州城市道路交通伤害的空间规律,对交通伤害的预防和控制提供科学依据。[方法]应用地理信息系统(geographic information system,GIS)技术中反距离加权插值法(inverse distance weighted,IDW)探测柳州城市道路交通伤害的空间分布规律,并对结果进行可视化分析。[结果]2000—2009年柳州城市道路交通的伤害事故发生起数和受伤人数波动较大,但总体上呈下降趋势,死亡人数和直接经济损失在高值过后呈小范围内波动;柳州城市道路交通伤害发生的事故起数排序为鱼峰区>柳北区>城中区>柳南区,城市道路交通伤害事故发生起数的空间自相关分析表明,平均Moran’s I的Z值为6.113>1.96,P<0.05,存在空间聚集性。道路伤害死亡数的插值分析结果显示,聚集区主要集中在东环大道鱼峰区路段、柳江一桥至鱼峰路路段、屏山大道箭盘山路路段,柳北区跃进路路段,潭中中路、西路路段;2004年道路伤害专题地图显示城市中心道路伤害严重,2005—2009年伤害渐渐远离城市中心,主要发生在城乡结合部道路上。[结论]柳州市2000—2009年城市道路伤害发生情况依然比较严重,应用GIS可以探测出伤害的聚集区,且准确定位聚集区并对区域进行可视化,为预防和控制道路伤害提供可视化依据。
[Objective] The research aimed to explore the spatial rules of road traffic injuries in urban areas in Liuzhou and provide a scientific basis for the prevention and control of traffic injuries. [Method] With the inverse distance weighted (IDW) method in geographic information system (GIS) technology, the spatial distribution of road traffic injuries in urban areas of Liuzhou was probed and the results were visualized. [Results] The number of injuries and the number of injuries in urban road traffic of Liuzhou fluctuated greatly from 2000 to 2009, but the trend was generally declining. The death toll and direct economic loss fluctuated within a small range after high value. The urban road of Liuzhou The sequence of traffic accidents occurred in Yufeng District> Liubei District> Chengzhong District> Liunan District. Spatial autocorrelation analysis showed that the mean Moran’s I Z value was 6.113> 1.96, P <0.05, there is spatial aggregation. Interpolation analysis of the number of road fatalities shows that the areas of concentration are mainly located in the section of Yutou District of Donghuan Avenue, the section of Liujiang No.1 Bridge to Yufeng Road, the section of Jinshan Road of Ping Shan Road, the section of Yuejin Road in Liubei District, the section of Tanzhong Middle Road, Road sections; 2004 Road Harm Thematic maps show serious injuries to the roads in urban centers. Injuries in 2005-2009 are gradually getting away from urban centers, mainly on the road between urban and rural areas. [Conclusion] The urban road injuries in Liuzhou from 2000 to 2009 are still serious. Application of GIS can detect the gathering area of injuries and locate the gathering area accurately and visualize the area, providing a visual basis for prevention and control of road injuries.