Contractors must check the accuracy of the construction zone depth and height of the construction area is compared to the reference. To adopt a plan for the construction according to plan.
Contractor must perform validation of field construction. Depth and height of the construction area in comparison with the reference point to be used to plan construction, according to the plan.
Authentication required to operate the taxi driver of the construction area and the depth of the area compared to construction reference point used to plan the construction of a floor plan.