Abstract
Recently, the activation of the urban area is becoming a serious problem. As an example, open terraces are set up to improve the usage of street spaces. The street spaces are evaluated by the index of flowing quantity of the space density and the pedestrians, today. However, these indexes cannot be applied to the space where multiple ways of flow exists. Therefore, it cannot be clarified whether or not if this is effective. So in order to clarify the effect, it is important to understand the situation of the flow. The study proposes the index quantitatively expresses the flow situation. And the utility was confirmed by the walking experiment that simplified the flow situation. Also in an actual urban area that showed complex flow, it was shown that the index was able to be applied. The influence of the analytical condition and the spatial condition on the index was examined by using the walking experiment data.
