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- 2016
道路密度分区及其在道路选取质量评价中的应用
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Abstract:
道路密度信息广泛应用于景观分析、路网规划、城市边界提取与道路网综合等领域。提出了一种道路密度分区方法，该方法首先生成道路交叉点和端点的Voronoi图，然后运用Gi*提取局部的Voronoi单元面积的高值聚集区与低值聚集区，最后将95%置信度下的高值区域和低值区域对应的相邻Voronoi单元合并。对Google地图上14级、13级和12级香港的道路网进行了实证研究，结果表明，该方法生成的密度分区大致反映了道路网的疏密，并较好地反映了选取前后各区域道路密度的对比规律。将本文方法与网格密度法进行对比，结果表明本文方法优于网格密度法
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