At a construction site with experienced personnel, if the skill levels of these workers vary, it is advisable to place relatively experienced personnel in more critical stages of the process. This is an aspect of coordination at the construction site.

At a guardrail pile installation site, besides having complete equipment and professional personnel, it is more important to fully utilize these resources. For instance, the installation of guardrail piles is not only a task for the highway guardrail pile driver but can also involve air compressors or other equipment. When operating these machines, it's essential not just to handle the equipment but also to choose experienced construction personnel. If the skill levels of these workers vary, then relatively experienced workers should be placed in more critical stages. This is part of the site coordination.

Compared to other construction projects, highway safety projects are relatively straightforward, involving fewer personnel and procedures. First, let's consider the personnel arrangement. Typically, there is one operator and one site coordinator. If it's pile driving, then a pile guard is needed, followed by three personnel to install the guardrail panels. If it's direct drilling, only the operator and the site coordinator are required, but if using an external air compressor, it's necessary to operate the air compressor or a truck trailer air compressor.

Let's look at our construction process. Initially, surveying and marking are done, followed by drilling or direct pile driving. Generally, the distance between piles is 4 meters. After drilling, steel pipe piles are driven into the holes. After pile driving, w-beam guardrail panels can be installed. When installing these panels, they should be initially secured with screws.

From the perspective of division of labor and process arrangement, this construction is indeed relatively simple. However, at the construction site, especially in areas with complex terrain, safety is a major concern. I believe that construction workers might have encountered unsafe situations, but with proper safety measures in place, even in emergencies, issues can be well managed, mitigating the severity of consequences.