Traffic Information Radio Station
The sign indicates the radio frequency for traffic information
When You See This Sign
When you see the sign you can choose to tune to the indicated radio channel to receive current road traffic information about, for example, accidents, queues, or roadworks. You do not need to change your speed or drive differently solely because of the sign — act only if the radio gives specific instructions.
Rules & Regulations
- The sign indicates that there is a road traffic information radio station and usually shows which frequency is used (in MHz).
- The sign is an information sign (location/public) and does not impose any obligation to reduce speed or yield — it does not change traffic regulations.
- The sign's information is intended to make it easier for road users to receive updates about accidents, disruptions, or road maintenance along the relevant stretch.
- The placement of the sign follows the Swedish Transport Administration's rules for directional and information signage and is put up where ongoing traffic information is available via radio.
Tips for Drivers
- If you want current traffic information, tune your radio to the indicated frequency before you pass narrow sections or long stretches — but adjust the radio when it is safe, preferably when stopped.
- Use steering wheel/stereo controls or hands-free to change the channel if possible; avoid taking your eyes off the road when setting the frequency.
- Listen especially in bad weather, during traffic jams, or at roadworks because the radio channel often provides practical information about alternative routes or waiting times.
- Keep in mind that modern navigation and mobile apps can also provide the same information; use them as a complement if radio is not available.
Common Mistakes
- Believing that the sign implies an obligation to change lanes, stop, or reduce speed — it is purely informational.
- Confusing the sign with a warning sign for hazards; G3 only informs about the traffic radio, not about immediate dangers.
- Assuming that the frequency always applies to the entire route — some information may be local and time-limited, so check the message you receive.
Test Yourself
Road Sign: Traffic Information Radio Station
What does this sign showing a radio station mean?
- A Indicates that a radio frequency is available for road traffic information
- B Indicates that radios should be switched off in the area
- C Indicates that speed limits are monitored by radio
- D Indicates that the radio broadcasts emergency transmissions only for rescue services
Exam Tip
In the theory test you may be asked whether the sign implies any prohibitions or obligations — the correct answer is that it is purely informative and does not change traffic rules. If a question suggests that you must slow down or stop because of the G3 sign, indicate that this is incorrect.
Did You Know?
The G3 sign is part of the information signs that the Swedish Transport Administration uses to reach road users via traffic radio; it is often seen near motorways, tunnels, and major road junctions where continuous traffic information is important. Although many people use mobile apps today, traffic radio is still used for quick, operational messages.
Frequently Asked Questions
Do I have to change the radio channel when I see the sign?
No, it is voluntary to switch to the indicated frequency. The sign informs that traffic information is available on that channel, but it is up to you whether you want to listen.
Does the sign mean there is danger ahead?
No, the sign itself does not warn of danger. It only shows that you can receive traffic information via radio; any warnings are given in the radio broadcast.
Why is a frequency sometimes shown on the sign?
The frequency shows which radio channel broadcasts local traffic information for the area. It is used to quickly receive relevant messages about traffic disruptions or roadwork.
Does the information on the radio apply to the whole journey?
Not necessarily. The radio channel usually provides local and current information for the stretch or region the broadcast covers, so messages may be location- and time-limited.
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