12/26/2023 0 Comments Visibility definition![]() ![]() There are two levels of retroreflective material. This lack of contrast makes retroreflective materials ineffective for enhanced visibility during (sunny) daytime conditions. While retroreflective materials can still reflect in the daylight, there is little difference between the light reflected from the garment's material and the surrounding environment. Retroreflective materials are most effective under low-light level conditions. This property will let a driver or equipment operator see the light being reflected from the retroreflective material on a person's garment (as long as the person is standing in the light's beam). Retroreflective material is created to return light in the direction of the light's source. Fluorescent colours provide the greatest contrast against most backgrounds. These materials enhance daytime visibility, especially at dawn and dusk. This property offers daytime visibility enhancement that is not present with other colours. Fluorescent material will appear brighter than the same coloured non-fluorescent material, especially under low natural light (e.g., cloud cover, fog, dusk, dawn, etc.). This material only functions where there is a source of natural sunlight. High-visibility apparel is considered to be personal protective equipment, and can be used in addition to other controls.Ĭan I add a logo or name tag to the High-Visibility Apparel?įluorescent material takes a portion of invisible ultraviolet light from sunlight, and through special pigments, sends it back to the viewer as more visible light. It is important to eliminate or reduce the hazards using engineering (e.g., physical barriers) and administrative controls (e.g., work during daylight hours). Once the hazards are identified, the employer can select appropriate controls. The sightlines of mobile equipment and vehicle operators, especially when vehicles are operated in reverse.Any distractions that could draw workers attention away from hazards.Current controls (e.g., engineering controls such as barricades or administrative control such as training).Factors that affect warning distances and times, such as the volume of traffic, the size of vehicles, their potential speeds, the ability to stop quickly, and surface conditions. ![]()
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