Temporary Symbolic Signs
(South Africa) Reduced Visibility Sign
W354
On any road where there is fog or smoke.
To warn that there is a possibility reduced visibility on the road ahead that might cause a hazard to road users.
Look out for Fog or smoke and slow down. Be on the look out for other slow moving vehicles.
Overview The Temporary Symbolic Signs (South Africa) – Reduced Visibility Sign are used on public roads to warn drivers that visibility ahead may be significantly reduced due to fog, smoke, dust, or similar conditions. What the Sign Means This sign indicates that drivers may not be able to clearly see the road, other vehicles, or hazards ahead. Reduced visibility increases the risk of collisions, especially in fast-moving traffic. The key purpose is: to warn of poor visibility ahead and require drivers to slow down and drive with extra caution. How It Works in Practice Fog, smoke, dust, or haze may limit how far ahead you can see. Other vehicles may only become visible at close range. Slow-moving or stationary vehicles may appear suddenly. Lane markings and road edges may be harder to see. Driver Responsibilities Reduce speed immediately when visibility drops Use headlights appropriately (dipped headlights in fog or smoke) Increase following distance significantly Be prepared for sudden stops or slow-moving traffic Where You Will See This Sign In areas prone to fog (valleys or coastal regions) Near industrial zones with smoke or dust On rural roads during veld fires or burning conditions In early morning or late evening low-visibility conditions Purpose of the Sign The purpose of the reduced visibility sign is to warn drivers that sight distance is limited, so they must slow down, increase awareness, and prepare for unexpected hazards or traffic changes ahead. Common Mistakes to Avoid Driving at normal speed in fog or smoke Using bright headlights incorrectly (causing glare) Following other vehicles too closely Not anticipating sudden obstacles or traffic slowdowns Safety Tips Slow down as soon as visibility decreases Use low beam headlights for better visibility Keep a large following distance Be prepared to stop safely if necessary Penalties for Ignoring the Sign Ignoring reduced visibility warnings may result in: Rear-end collisions due to poor sight distance Multi-vehicle accidents in fog or smoke Loss of control due to sudden hazards Fines for reckless or unsafe driving conditions Summary The reduced visibility sign in South Africa warns drivers that fog, smoke, or dust may limit how far ahead they can see. Drivers must slow down, increase following distance, and drive cautiously to avoid collisions.