Government has to hurry up to build accessible facilities for elderly people and people who has disabilities. Because our country is experiencing an aging society, for example, pedestrian space should be safe and give a relief. One of the methods to ensure this society is to obtain absolute position with high accuracy. Therefore, we suggested here to make Universal Map (UM) with a large scale (1/500 or 1/1000) by using REAL TIME GIS. The purpose of the research was to confirm whether absolute positions can be obtained accurately in pedestrian space. The experiment was performed by moving in KIT campus by a wheelchair to which D-GPS and VRS-GPS antennas have been attached. As a result, it became clear that any experiment fields could not receive accurate data. To solve these problems, we adopted IC tags which are new ubiquitous technology. For a solution, it is recommended that the UM be made by the REAL TIME GIS and IC tags.