ABSTRACT

Planned supergrid developments are influential on both the modernization and conservation of historic street patterns and their spatial structures, but related discussions have so far remained largely at prescriptive or normative levels without an in-depth empirical basis. Through a case study on the historic city centre of Seoul by devising and applying a systematic framework of space syntax analysis incorporating relatively recent, less known but elaborate techniques, this study therefore empirically analysed the detailed spatio-configurational changes that occur when such plans are implemented and evaluated what their consequences may be with relation to the modernization and conservation of historic street patterns. While a variety of empirical evidence presents the spatio-configurational mechanisms of the planned supergrid consistently facilitating the historic street system’s modernization, results related to its conservation are mixed; the original spatial structure and order does become disrupted at the background and local-scale foreground levels but contrary to conventional perceptions it is spatially succeeded and expanded at the global-scale foreground level, and streets comprising the supergrid that had already existed before its development have a milder impact than newly constructed ones. Implications for the sustainable management and planning of historic street patterns and their spatial context are further discussed.

摘要

规划中的超级网格发展对历史街道模式及其空间结构的现代化和保护都有影响，但迄今为止，相关讨论仍主要停留在规定或规范层面，没有深入的经验基础。通过对首尔历史城市中心的案例研究，通过设计和应用空间句法分析的系统框架，结合相对较新、鲜为人知但复杂的技术，本研究因此实证分析了实施此类计划时发生的详细空间配置变化并评估了它们对历史街道模式的现代化和保护可能产生的影响。虽然各种经验证据表明规划中的超级网格的空间配置机制始终如一地促进历史街道系统的现代化，但与其保护相关的结果好坏参半；原来的空间结构和秩序在背景和局部尺度前景层次上确实被打乱了，但与传统的看法相反，它在空间尺度上得到了成功和扩展，在全球尺度的前景层次上，由在其发展之前已经存在的超级网格组成的街道已经比新建的影响更温和。进一步讨论了对历史街道模式及其空间背景的可持续管理和规划的影响。原来的空间结构和秩序在背景和局部尺度前景层次上确实被打乱了，但与传统的看法相反，它在空间尺度上得到了成功和扩展，在全球尺度的前景层次上，由在其发展之前已经存在的超级网格组成的街道已经比新建的影响更温和。进一步讨论了对历史街道模式及其空间背景的可持续管理和规划的影响。原来的空间结构和秩序在背景和局部尺度前景层次上确实被打乱了，但与传统的看法相反，它在空间尺度上得到了成功和扩展，在全球尺度的前景层次上，由在其发展之前已经存在的超级网格组成的街道已经比新建的影响更温和。进一步讨论了对历史街道模式及其空间背景的可持续管理和规划的影响。