抄録
The purpose of this paper is to examine the relationship between road distances and Euclidean distances on a road network. First, we define the detour ratio using these distances and show the method to compute the ratio and the correlation coefficient between these distances. Then we reveal the fundamental characteristics of the detour ratio and the correlation coefficient. Finally, we compare the road network of Tsukuba city, Japan and that of Louvain-La-Neuve, Belgium based on these ratio and coefficient.
