西安建筑科技大学学报(自然科学版)

在节约集约用地的背景之下,“小街区,密路网”模式在我国规划建设中得到推广应用.然而增加的道路和后退红线面积会带来城市实际建设用地的减少,与节约集约用地原则相悖.通过结合相关规范和标准建立模型,对小街区模式下的实际城市建设用地利用情况进行定量分析,得出小街区模式中,道路与后退红线面积的增加会造成城市实际建设用地的明显减少的结论.从不同角度论证后退红线的根本目的是应保证具有私权的开发用地不对其相邻的道路用地产生干扰,并提出小街区模式的后退红线应实行强制性和引导性结合、精细化和具体化结合的节地模式,在满足后退红线根本目的的原则上尽量节约城市建设用地.

Under the background of economical and intensive use of land, “small bock size, high street density” pattern has been popularized and applied in China's planning and construction. However, the increased area of roads and the building restriction setbacks will lead to the reduction of urban construction land, which is contrary to the principle of economical land use economical and intensive land use. Based on the relevant norms and standards, a model is established to quantitatively analyze the actual utilization of urban construction land under the small block mode size, and it is concluded that increased area of roads and building restriction setbacks in the small bock size pattern will result in a significant reduction of urban actual construction land. It is argued from different perspectives that the fundamental purpose of the building restriction setbacks is to ensure that the development land with private rights from affecting the adjacent road land, and it is proposed that the building restriction setbacks in the “small bock size” pattern should implement the land saving mode of the combination of compulsion and guidance, refinement and concretization, and save urban construction land as much as possible in line with the principle of meeting the fundamental purpose of the building restriction setbacks.

引言
1 基于路网密度的城市建设用地模型
2 基于后退红线的城市建设用地模型
3 后退红线的根本目的
4 “小街区,密路网”模式下后退红线的建议
5 结语

表1 旧版道路规范对应平均道路间距表<br/>Tab.1 Average road spacing corresponding to old road specifications

表1 旧版道路规范对应平均道路间距表
Tab.1 Average road spacing corresponding to old road specifications

图1 典型城市某街区尺度<br/>Fig.1 Scale of a block in a typical city

图1 典型城市某街区尺度
Fig.1 Scale of a block in a typical city

表2 北京市各行政区路网密度<br/>Tab.2 Road network density of each region in Beijing

表2 北京市各行政区路网密度
Tab.2 Road network density of each region in Beijing

表3 西安市各行政区路网密度汇总表<br/>Tab.3 Road network density of each region in Xi'an

表3 西安市各行政区路网密度汇总表
Tab.3 Road network density of each region in Xi'an

图2 理想街区模型
Fig.2 Ideal block model

表4 道路间距与用地指标关系<br/>Tab.4 Relationship between road spacing and land use index

表4 道路间距与用地指标关系
Tab.4 Relationship between road spacing and land use index

图3 道路间距与其他指标关系图<br/>Fig.3 Relationship between road spacing and other index

图3 道路间距与其他指标关系图
Fig.3 Relationship between road spacing and other index

图4 典型大街区与标准小街区指标对比<br/>Fig.4 Comparison of index between typical big block area and standard small block

图4 典型大街区与标准小街区指标对比
Fig.4 Comparison of index between typical big block area and standard small block

表5 典型大街区与标准小街区指标关系表<br/>Tab.5 Index relationship between typical big block area and standard small block

表5 典型大街区与标准小街区指标关系表
Tab.5 Index relationship between typical big block area and standard small block

表6 典型城市标准后退红线宽度取值<br/>Tab.6 Value of standard building restriction set back of typical city

表6 典型城市标准后退红线宽度取值
Tab.6 Value of standard building restriction set back of typical city

图5 理想模型后退红线示意图<br/>Fig.5 Schematic diagram of building restriction setback in ideal model

图5 理想模型后退红线示意图
Fig.5 Schematic diagram of building restriction setback in ideal model

图6 典型大街区与标准小街区后退红线指标关系<br/>Fig.6 Building restriction setback index relationship between typical big block area and standard small block

图6 典型大街区与标准小街区后退红线指标关系
Fig.6 Building restriction setback index relationship between typical big block area and standard small block

表7 道路间距与后退红线指标关系<br/>Tab.7 Index Relationship between road spacing and building restriction setback

表7 道路间距与后退红线指标关系
Tab.7 Index Relationship between road spacing and building restriction setback

表8 典型大街区与标准小街区后退红线指标关系<br/>Tab.8 Building restriction setback index relationship between typical big block area and standard small block

表8 典型大街区与标准小街区后退红线指标关系
Tab.8 Building restriction setback index relationship between typical big block area and standard small block

图7 著名城市街道街景<br/>Fig.7 Streetscape of famous city

图7 著名城市街道街景
Fig.7 Streetscape of famous city

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备注

引言

1 基于路网密度的城市建设用地模型

2 基于后退红线的城市建设用地模型

3 后退红线的根本目的

4 “小街区,密路网”模式下后退红线的建议

5 结语

期刊信息