Abstract
It does not grasp what thing that from which most workers who work in a construction site are making themselveses is. Actually, my friend also said that work was boring and has stopped work. It is thought that leads to the fall of a worker’s operating volition. Therefore, I raised operating volition by directing the wonderfulness of himselfs work to them, and it aimed at urging improvement in productivity, and mitigation of a mistake more. This time, it carried out about the work spot of a bridge. The reason is that a bridge is very large and it is hard to hold the whole image.
