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.Lighting conditions and how the natural light might be affected by changing weather (e.g., sunlight, overcast sky, fog, rain, or snow).How long the worker is exposed to various traffic hazards, including traffic speeds.The workplace environment and the background workers must be seen in (e.g., is the visual area behind the workers simple, complex, urban, rural, highway, filled with equipment, cluttered).Work conditions, such as indoor or outdoor work, temperature, work rates, traffic flow, traffic volume, visibility, etc.Are there industry specifications or good practices?.Do workers need to be visually identifiable from others in the area?.Are workers controlling traffic or interacting with the public?.Do workers and mobile equipment need to interact?.When doing a hazard assessment where HVSA might be required, be sure to consider: For more information about risk assessments, please see the OSH Answers document Risk Assessment. This assessment helps determine the risk to workers of being hit by moving vehicles and the environmental conditions under which work is performed. The CSA Standard recommends that a hazard assessment be carried out on each job site to evaluate the workplace or work site for known or potential hazards a worker can encounter while performing a job or task. For example, certain tasks may require specific apparel. When do I need High-Visibility Safety Apparel? Back to topīefore selecting any high-visibility safety apparel, always confirm the legislative requirements for your jurisdiction. Worker visibility is enhanced by high colour contrast between clothing and the work environment against which it is seen. The human eye responds best to large, contrasting, bright or moving objects. High-visibility items allow you to be seen by the drivers of those vehicles from farther away so that they can respond accordingly, which increases your safety at work. High-visibility safety apparel (HVSA) is needed if you work when there is low light and poor visibility, especially if you are working around moving vehicles (cars, trucks or other machinery traveling under their own power, such as, forklifts, backhoes, etc). Why do I need High-Visibility Safety Apparel? Back to top In the United States, the design requirements are outlined in the ANSI/ISEA 107-2015 2020 American National Standard for High-visibility Safety Apparel and Accessories. High-visibility headwear can also be worn to increase the visibility of the wearer in situations where part or all of the wearer's body could be obscured (e.g., leaves/trees, traffic barriers, construction materials, etc.).ĭesign requirements for high-visibility safety clothing are generally found in the CSA Standard Z96-15 (R2020), High-Visibility Safety Apperal. Most often, high-visibility clothing is worn to alert drivers and other vehicle operators of a worker's presence, especially in low light and dark conditions. High-visibility safety apparel (HVSA) is clothing (e.g., vests, bibs, or coveralls) that workers can wear to improve how well other people "see" them (their visibility). What is High-Visibility Safety Apparel (HVSA)? Back to top You are here: High-Visibility Safety Apparel
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