Abstract
Sotobori moat, made outside in the Edo castle for its defense in 17th century, has various values not only of a waterfront space but also historical ruins, which values are widely recognized by residents near and far from Sotobori moat. The aim of this study is to analyze the citizen's preferences of "use values" (direct/non-direct) and "non-use values" (historical value, bequest value, existence value and ecological value) in Sotobori moat. The data for analysis were collected though an online questionnaire survey of citizens living in Tokyo and the suburban of Tokyo. The results showed that 1) canals are valued higher than bridges, 2) the frequency of use is positively correlated with the degree of valuation, 3) non-use values are preferred to use values and 4) no correlation is found between the residential area and the degree of valuation. Citizons favor the preservation of factors like pine and cherry trees and stonewalls which provide the non-use values more than the development of Sotobori moat.
