抄録
In this study, I account for the following subject. In a cmmunity area (=neighbourhoods area), how the roads to be utilized by pedestrians, vehicles or playing children? (1) Pedestrians take the shortest route to their destination, even if the route is dangerous by vehicles. (2) The routes which pedestrians take, are not cut off by heavey traffic. (3) Heavey traffic way interrups the playing children form crossing it to go to playing place.
