Do you know what the colors of reflective vests mean?

The reflective vest is made of high visibility reflective material and fluorescent fabric. Reflective vests can provide a good safety warning in harsh weather or light, reming vehicle drivers or other personnel accompanying you to avoid accidents. It can be said that reflective vests are a safety protection weapon.
In addition to our common fluorescent yellow and fluorescent orange, there are also reflective vests such as red and blue, but do you know what these colors mean? Today, let me tell you the meaning of reflective vests.
When traveling at night, lights and other light sources illuminate the reflective vest, and the reflective strip can form light reflection, reminding car drivers to avoid traffic accidents that are invisible and life-threatening in dark environments. At night, if you walk on the road wear dark clothes, it is difficult to distinguish and it is easy to cause accidents. The reflective vest is applicable to local workers who need to use light warning, such as road management personnel, traffic commanders, road maintenance personnel, motorcycle and bicycle drivers, dark workers, etc.
The meaning of ýmsir litir in reflective vests: fluorescent yellow represents the leader; Red gives security personnel; Blue represents technology; Fluorescent orange is a safety supervision.