岭南地区旧城更新中社区街市建筑密度适宜性研究

China has a large number of historical heritage of building and environment resources in the city centers, these resources are not only the main material carriers for the city characteristic protection, but also the eternal innovation sources for the urban redevelopment. In the current crucial period of urban redevelopment vigorously promoting while the corresponding planning and design methods need to be improved, the study on suitability of building density indicators in the community business street space during urban redevelopment of Lingnan region, under the background of requirement for considering the land-using concentrately policy recommended by the national government, focusing on the "Three-old" Reconstruction work developed by the local government, and promoting the research work on optimization of the historic urban community living environment, is according to a great number of instancing planimetric maps form the foreign and domestic community business street space, gets statistics and analysis of quantization data for the building density In the same urban scale contrast, then educes suitability range indicators of building density in the community business street space of the historical urban area, and puts forward the planning and design countermeasures corresponding to the fitness range. The goal is to explore the environment quality optimization methods in the historical urban public space of Lingnan region, seek the sustainable development way for the carrier of the community traditional culture, and effectively respond to the human scale needs in the community street space.

当前岭南地区旧城建筑与环境资源正面临一场大规模更新改造运动- - "三旧"改造，这是在国家"节约集约用地"政策下，作为试点地区的珠三角城市对国家政策的积极回应。事实上，除了法定保护的历史文化街区和文物古迹以外，旧城大部分原有城市形态的静态保护方式已难以为继，只有通过对城市形态的基础核心要素加以反思与研究，才能有效引导旧城更新延续城市形态逻辑，维育传统文化。岭南旧城的"社区街市"是承载着传统市民文化的地域性城市公共空间，"建筑密度"是其城市形态的基础核心要素之一，也是进行微观尺度城市形态研究的重要指标。本研究通过对社区街市内涵的解析,归纳出街市适宜密度的判定特征，并根据大量岭南地区旧城社区街市的实测平面图，进行同等尺度对比下的建筑密度数据量化统计与分析，据此确定建筑密度适宜性范围。该量化指标可作为通用的岭南地区旧城社区街市建筑密度适宜性判断基准,为城市设计中塑造舒适宜人的旧城社区街市提供参考。

岭南地区夏长冬短、潮湿多雨，亚热带季风海洋性气候特点孕育了与之依存的独特的人性化城市空间。时至今日仍作为人们日常生活场所的旧城社区街市，正是岭南地区城市发展历程中极为特殊而重要的单元，是城市的社会交往发生和集体印记承载的地方，并集中体现了旧城社区的步行可达性与气候兼容性。当前，岭南地区城市化进程正在随着内外因素变化而开始进入转型，以“三旧”改造为政策导向的旧城更新需求也达到了前所未有的高度。但是在急速推动旧城更新的工作进程中，许多城市旧区在更新和改造的过程中产生了各种问题，如步行不畅、活力锐减、社区隔离、历史风貌缺失等等的问题。正是在这样的情况下，本文希望通过对岭南地区75个现今仍较为繁华的旧城社区街市空间形态的对比研究，提出相应的改进意见或者具有参考价值的信息。.本文主要针对旧城社区街市的空间形态密度指标进行数据收集和分析。数据收集方面，本文将从图底分析入手，利用软件从调研资料及互联网络获取数据，对相应的旧城社区街市范围进行量化，并收集整理数据。对于数据的分析将利用可视化的图表和专业的数据分析软件进行辅助，并对分析结果进行梳理和评价。