Abstract
Cooperation is one of the effective methods for local governments to build geospatial data economically. In this study, we focus aerial photograph and tried to make a method to estimate the cost saving effect of cooperation. Using this method local government officials who may not necessarily have technical knowledge of aerial survey can estimate cost save. We estimate the costs to take aerial photos by the method to set a flight course easily that took a rule of survey into account. We get the result the test calculation level of cost save from 40% to 80% according to a number and an area of cities. These results almost meet preceding studies.
