臺南市路網空間型構與古蹟便捷值敏感度分析

Road Network Space Syntax and Historical Monument Regarding the Sensitivity Analysis in Tainan City

近年來文化結合觀光已在全球快速成長，其中古蹟觀光已成為重要的旅遊型態。對於觀光，交通的便利，影響了遊客目的地選擇。本研究使用空間型構法則探討台南市交通空間結構現況，並探討古蹟便捷值敏感度。採用四項可及性指標，全區便捷值、地區便捷值、連接度及控制值，各指標值越高表可及性程度越高。結果顯示，台南市的空間型構，全區便捷值由中西區逐漸向外遞減呈現一放射狀，地區便捷值分佈較分散，除中西區外有數十個以上的鄰里中心。在路網整合性方面，台南市全區便捷值與連結度之R-squared值為0.1082（＜0.7），51處古蹟景點之全區便捷值與連接度之R-squared值為0.3171（＜0.7），顯示這51處古蹟景點高於台南市整體的路網整合性。古蹟便捷值敏感度分析上，在刪除一層或兩層等級最低的道路後，全區便捷值的最大影響程度，國定為20%，市定為75%，地區便捷值的最大影響程度，國定為33%，市定為80%。

In recent years, culture combined with tourism has shown rapid global development, especially historical monument or site tourism, which has become an important tourism type. Additionally, in the tourism field, transportation convenience influences the destination selections of tourists. We applied Space Syntax to investigate the current spatial structure of transport and Historical monument Regarding the sensitivity analysis in Tainan City. Of the Space Syntax parameters, we selected four accessibility indicators, global integration value, local integration value, connectivity, and control value. Additionally, the higher the value of each indicator, the higher the accessibility. Regarding the spatial structure of Tainan City, the results show that the global integration value gradually decreased from the central and western areas moving outward, displaying a radial shape. The local integration value distribution was more dispersed, with numerous neighborhood centers in addition to the central and western areas. Regarding road network integration, the integration R-squared value of Tainan City was 0.1082（＜0.7）. The R-squared value of 51 historical monument locations was 0.3171（＜0.7）. Regarding the sensitivity analysis, the spatial sensitivity for the global integration value was 20% and 70% for national and city historical monuments, respectively. Sensitivity for the local integration value was 33% and 80% for national and city historical monuments.