Abstract
This study clarified about the block formation at Báng-kah and Töa-tiü-tiâ n in Tâi-pak under Japanese rule. Old Tâi-pak (Taipei; at present) was constituted by three urban districts; Sia-lai (walled city), Báng-kahand Töa-tiü-tiâ n Inside Sia-lai, the existing streets were utilized by improvement. In contrast, the existing streets and the planned streets was lack of relation in the two another urban districts. In Töa-tiü-tiâ n that was clearness comparatively, utilized existing street prescribed the north and south axial block formation, but dirty Bang-kah streets were remodeled into standardized grid pattern. The aim of blockformation in Báng-kah was hygiene environment improvement by application of existing facilities instead of accession of traditional urban district structure.