The SIG18 flashing amber light is a warning sign used to indicate that the road ahead is partially closed or to reinforce another instruction. You must slow down significantly, pay close attention to your surroundings, and follow any temporary signs, barriers, or guidance provided. These lights are often installed in work zones or areas with temporary hazards to ensure drivers are aware and can react safely.
Learn the key details of the SIG18 - Flashing Amber Light (Partial Closure or Reinforced Instruction) road sign, including its function, what it communicates to drivers, and how it applies in real traffic situations in Sweden. Use this overview to understand the sign clearly and recognise it confidently during the Swedish driving theory exam.
A flashing amber light in this context is used where the road is partially closed or where a warning needs to reinforce instructions given by another device, such as barriers, signs, or temporary guidance systems. The number of lights and their placement can vary depending on the site conditions to make the hazard or restriction clearly visible. The signal may be used alone or together with an audible device, for example to guide pedestrians when a tram or bus is crossing their path. You must slow down, pay close attention, and follow the specific instructions present at the location.
Used where a road is partly closed or to reinforce another instruction. Proceed with caution and follow the indicated guidance.
Get clear, practical answers to the most common questions about the SIG18 - Flashing Amber Light (Partial Closure or Reinforced Instruction) road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Swedish driving theory exam in Sweden.
The SIG18 flashing amber light signifies that there is a temporary condition ahead, such as a partial road closure or a reinforced warning. It means you must slow down and be extra attentive to any specific instructions or changes in the road ahead. Always interpret it in conjunction with any surrounding signs or barriers.
When you encounter the SIG18 flashing amber light, your primary reaction should be to reduce your speed and increase your focus. Look for any additional signs, barriers, cones, or workers that provide specific guidance on how to proceed. It's crucial to follow these instructions carefully and navigate the area with caution.
You can drive through the area indicated by the SIG18 flashing amber light, but only if it is safe and permitted to do so, and by strictly following any specific instructions given by temporary signs, barriers, or site personnel. Never proceed through a partially closed area without understanding and adhering to the indicated path or restriction.
A common trap in the theory exam is assuming the flashing amber light allows you to proceed at normal speed. In reality, it's a strong indicator for caution. Another trap is ignoring the sign's instruction to follow other temporary traffic management devices; you must always consider the context provided by barriers, cones, and other signs.
The SIG18 flashing amber light is typically used in areas where roadwork is taking place, or where there's a temporary hazard or complex situation that requires drivers to be extra vigilant. This might include areas with lane closures, diversions, or where temporary traffic control is in place to manage flow safely.
A clear reference image of the SIG18 - Flashing Amber Light (Partial Closure or Reinforced Instruction) road sign used in Sweden.
The SIG18 - Flashing Amber Light (Partial Closure or Reinforced Instruction) road sign may also be known by these alternative names or terms.
The SIG18 - Flashing Amber Light (Partial Closure or Reinforced Instruction) road sign is part of the Traffic Signals (L) category, which groups together signs with similar rules and functions.