What does the contractor's resident construction mean in highway engineering?

The contractor's resident construction fee refers to the cost of the contractor's house, office building, processing workshop, warehouse, laboratory and necessary water supply, sanitation and fire control facilities that must be temporarily built by the contractor for the project construction, including the cost of dismantling and restoring the original natural state.

On-site construction refers to the contractor's expenses for leveling and hardening the stockyard, mixing yard and prefabrication yard, separating the operation area, and dismantling and restoring it to its original state.