Temporary Guidance Signs
(South Africa) Traffic Movement Affected by Obstruction a Distance Ahead
GS152
On any public road.
To indicate that certain restrictions or requirements may temporarily apply in using the road
Slow your speed down and move in the correct lane to pass the obstruction ahead.
Overview The Temporary Guidance Sign – Traffic Movement Affected by Obstruction (Advance Warning) in South Africa is a temporary road sign used on public roads to warn drivers that an obstruction ahead will affect normal traffic flow. It is commonly used during roadworks, accidents, or lane blockages. What the Sign Means This sign indicates that an obstruction is present ahead at a certain distance, and traffic will need to adjust its movement—such as changing lanes, merging, or slowing down—to safely pass the affected area. How It Works in Practice Warns of a physical or temporary obstruction ahead. May indicate lane closures or narrowed road space. Requires drivers to prepare for lane changes or merging. Used in combination with cones, barriers, or flag personnel. Driver Responsibilities Slow down when approaching the warning sign Observe traffic flow and choose the correct lane early Merge safely where lanes are reduced Follow all temporary instructions from road authorities Where You Will See This Sign This sign is commonly found: Near roadworks or construction zones At accident scenes causing lane blockages In areas with temporary road obstructions Along highways undergoing maintenance or repairs Purpose of the Sign The purpose of this temporary guidance sign is to alert drivers early to changes in traffic flow caused by obstructions, allowing safe lane selection and reducing congestion or collisions. Common Mistakes to Avoid Driving at high speed toward the obstruction Changing lanes suddenly at the last moment Ignoring cones or barrier placements Failing to merge in time with traffic flow Safety Tips Slow down early when seeing advance warning signs Choose your lane well before reaching the obstruction Maintain safe following distances Be patient in congested or merging traffic Penalties and Risks for Ignoring Guidance Ignoring this sign may result in: Collisions due to sudden lane changes Traffic fines for unsafe driving in work zones Damage to vehicles or road equipment Serious injury in congested or narrowed road areas Summary The temporary traffic movement obstruction sign in South Africa ensures drivers are prepared for lane changes or reduced road space ahead, improving safety and traffic flow around temporary obstructions.