A safety vest is necessary for the construction site

A young man was killed by a bulldozer at the construction site again. The reason is that the bulldozer's driver didn't see him because of the rainy day and bad low visibility. It is frustrating and sad that this similar thing always happen. Even though some people has already realize it and come up with the corresponding measures to avoid it, such as wearing a safety vest and related security measures. Only few people to obey it.
 Worker safety is a top priority. Project directors should do whatever they can to make sure that their staffs are as safe as they can be when they are working on the construction sites. A reflective vest is necessary for the construction workers, because of its high visibility. You know, sometimes, construction workers need work at night because of something urgent. The truth is, people are easier to get tired when working at night, so accidents happen more frequently than daytime, because workers are tired and cannot see clearly at night under the low light.
That's why more and more people advocate to wear a hi vis vest with reflective tape when working on roadway, construction site etc. Its high visibility can help others see us and avoid the accidents. It is time to do it now.