The F21 Lane Guidance Before Junction sign is a crucial information sign designed to help you choose the most appropriate lane well in advance of an upcoming junction or split in the road. It indicates the recommended lanes for continuing your journey or reaching a specific destination, adapting to the specific road layout. By following this guidance, you can avoid last-minute lane changes and contribute to smoother, safer traffic flow. Always trust the posted lane guidance over your GPS if they conflict, and plan your lane changes early.
Learn the key details of the F21 - Lane Guidance Before Junction 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 Lane Guidance Before Junction sign helps drivers select the correct lane well before reaching the junction. It shows recommended lanes for the intended direction or destination, adapted to the local layout. This reduces late merging and improves safety where traffic streams split or turn. The sign’s colour must not be altered, supporting consistent recognition across the network.
This sign shows the most suitable lane for continuing travel before a junction, adapted to local conditions.
Get clear, practical answers to the most common questions about the F21 - Lane Guidance Before Junction 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 F21 sign helps drivers decide which lane to use before a junction or intersection. It shows the recommended lane for different directions or destinations, making it easier to position your vehicle correctly and avoid traffic conflicts.
You should move into the recommended lane as early as safely possible before reaching the junction. Avoid waiting until the last moment, as this can disrupt traffic and increase the risk of an accident. Plan your lane change well in advance.
In Sweden, as with many countries, official road signage takes precedence over navigation systems. You should always follow the lane guidance indicated by the F21 sign to ensure you are in the correct lane for your intended route through the junction or split.
Yes, the F21 sign implicitly discourages waiting until the very last moment to pick a lane. It also prohibits dangerous manoeuvres such as crossing multiple lanes in quick succession just before the junction or blocking traffic while attempting a late lane change. The aim is to promote orderly lane usage.
A common mistake is assuming your GPS is always correct, ignoring the F21 sign. Another trap is not anticipating the lane change early enough, leading to incorrect lane choices or unsafe last-minute manoeuvres. The exam will test your understanding of following posted guidance for smooth traffic flow.
A clear reference image of the F21 - Lane Guidance Before Junction road sign used in Sweden.
The F21 - Lane Guidance Before Junction road sign may also be known by these alternative names or terms.
The F21 - Lane Guidance Before Junction road sign is part of the Localisation Signs (F) category, which groups together signs with similar rules and functions.