Objective Because with field work such as the road construction which accompanies the movement of the work site, it means that the worker and the guard move because of stool and rest from construction site separated, absent time on of the site where it occurs with that is compacted, the fact that the danger accident being generated is evaded is purpose of this device. Constitution In order to accomplish field work such as road construction, being the construction regulation car which posts the signboard of the indicator which displays construction contents in the carrier of the autotruck, it has consisted of the configuration that it installs the rest room facility in that carrier, internalizes the multiple toilet bowls and makes interchangeable ones, in addition, it makes the framework of the enclosing shelf in the side, folds in the transversal frame and armament the tent, it makes the rest facility. Choice figure Drawing 1
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