For this part, there are already various pre-designed plans, theoretically speaking, on-site construction personnel just need to follow the blueprints to carry out the construction, and they can complete it smoothly and pass inspection in the end. But the reality is that this ideal situation is almost impossible to appear.
Because in the vast majority of cases, even with the blueprints, the on-site personnel still don't know what to do, and the blueprints are often only theoretically feasible. Various problems will be encountered during the actual progress, which need to be solved by on-site engineers.
And there often exists variance in the understanding ability between human individuals. The same blueprints combined with on-site construction plans, different engineers will often propose different solutions and then encounter different problems. This is also the most important part of an engineering project to land perfectly, how to do it.
