防灾避险绿地可达性阻碍系数研究——以四川长宁县中心城区为例  

作　　者：唐德富 

机构地区：[1]中规院(北京)规划设计有限公司海南分公司,海口570100

出　　处：《科技创新与应用》2023年第8期63-65,73,共4页Technology Innovation and Application

摘　　要：该文运用线性回归分析法、最邻近距离法、核密度分析法,研究道路长度、坡度、宽度、人口分布密度与可达性之间的关系,构建防灾避险绿地可达性阻碍模型。研究表明,阻碍系数λ值越小可达性越高,反之亦然;在3个阻碍因子中长度阻碍因子对λ的影响最大,宽度与人口分布密度关系次之,坡度阻碍因子影响较小。In this paper, the relationship between road length, slope, width, population distribution density and accessibility is studied through linear regression analysis, nearest neighbor distance method and nuclear density analysis, and the accessibility obstruction model of disaster prevention and avoidance green space is constructed. Studies have shown that: the smaller the obstruction coefficient λ value, the higher the accessibility. Among the three obstruction factors, the length hindrance factor has the greatest impact upon λ, the relationship between width and population distribution density is secondary, and the slope hindrance factor has less impact.

关 键 词：GIS网络 可达性 地震防灾公园 阻碍因子 数据模型 

分 类 号：TU984[建筑科学—城市规划与设计]