| 重庆市主城区城市路网演变分析及与城市扩张耦合性研究 |
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| 引用本文： | 郑稚棚,吴凤敏,陈静,刘建,张斌.重庆市主城区城市路网演变分析及与城市扩张耦合性研究[J].测绘与空间地理信息,2020(2):135-138. |
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| 作者姓名： | 郑稚棚 吴凤敏 陈静 刘建 张斌 |
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| 作者单位： | 重庆市地理信息中心 |
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| 摘 要： | 研究结合重庆市主城区2011-2017年高分辨率遥感影像和相关地形图、规划资料及交通专题资料信息等,提取城市路网和城市建设用地数据,基于GIS操作平台,采用空间核密度方法分析主城区城市路网时空演变特征,探索城市路网空间分布规律,以街道(镇)为研究单元分析城市道路与城市用地扩张之间的耦合关系,为合理规划交通道路布局,促进城市扩张与道路网络的协调发展提供了重要参考依据。结果表明,主城区城市路网分布具有空间不均衡性特征,路网演变有明显的方向性,以东西两翼带状区域变化为主,路网密度变化集中在低密度区。与城市用地扩张相关性研究中发现,城市路网是城市扩张的主要驱动力之一,路网中密度区域对城市扩张的驱动效应最明显。
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| 关 键 词： | 路网演变 道路密度 城市扩张 重庆市主城区 |
Research on Evolution Characteristics and Re-coupling of Urban Road Network and Urban Expansion in Chongqing Urban Area |
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| ZHENG Zhipeng,WU Fengmin,CHEN Jing,LIU Jian,ZHANG Bin.Research on Evolution Characteristics and Re-coupling of Urban Road Network and Urban Expansion in Chongqing Urban Area[J].Geomatics & Spatial Information Technology,2020(2):135-138. |
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| Authors: | ZHENG Zhipeng WU Fengmin CHEN Jing LIU Jian ZHANG Bin |
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| Institution: | (Chongqing Geomatics Center,Chongqing 401121,China) |
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| Abstract: | This paper obtains urban road network and urban expansion features of Chongqing urban area based on high resolution remote sensing data,topographic map data,planning data and other traffic materials from 2010 to 2017. The density of urban road network is calculated by kernel density estimates and spatial overlay analysis method which is built up in Arc GIS. The area of single town is supposed as a study unit. The research shows that,the urban road density has a significant spatial unbalance growth status and increases in two bands of east and west direction mainly in low density area. Urban road network is one of the main driving forces of urban expansion,and the medium density region of urban road network seems more correlative to urban expansion Chongqing urban area. |
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| Keywords: | road network evolution road density urban expansion Chongqing urban area |
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