Undertaking, the practice of overtaking a slower-moving vehicle on its left-hand side, is a contentious issue on UK roads. While it is not strictly illegal, it is strongly discouraged by the Highway Code and can lead to serious accidents, especially at high speeds on motorways. In this blog post, we will clarify the rules around undertaking, discuss when it may be permissible, and outline the possible consequences if you are caught.

What Does the Highway Code Say About Undertaking?

The Highway Code advises drivers not to undertake, stating, "Do not overtake on the left or move to a lane on your left to overtake." However, there are exceptions that apply when a car undertakes in slow-moving traffic if its lane is moving faster than a lane on the right. In these circumstances, undertaking is often deemed safer than weaving in and out of traffic.

When is Undertaking Acceptable?

Undertaking may be permissible in the following situations:

• Slow-moving traffic: If your lane is moving faster than a lane on the right, it is safer to undertake than to weave in and out of traffic.
• Average speed checks: On motorways where average speed limits are in operation, it is acceptable to undertake if your lane is moving faster than a lane on the right.
• If a car is turning right or U-turning: If a vehicle is in the right-hand lane and turning right or performing a U-turn, it is permissible to undertake in the left-hand lane, but caution should be taken not to undertake too soon.

Can You Receive a Penalty for Undertaking?

Undertaking recklessly can result in a fixed penalty notice (FPN) for careless driving or driving without due care and attention. This usually means three points on your driving license and a £100 fine, although some police forces may offer a driver education course as an alternative. In more serious cases, it could be considered dangerous driving, which carries a harsher penalty of up to nine points on your license or disqualification, a fine of up to £5,000, and a court summons.

Conclusion

While undertaking is not strictly illegal, it is strongly discouraged by the Highway Code and can lead to serious accidents. It is essential to understand the exceptions where undertaking may be permissible and to exercise extreme caution when doing so. Always prioritize safe and predictable driving to avoid penalties and ensure the safety of all road users.

Now that we've covered the legality and safety aspects of undertaking, let's discuss some practical tips to help you navigate situations where you might consider this maneuver. Although it should be noted that avoiding unnecessary lane changes is generally the best policy, there are instances where undertaking can be a safer option. Here are some guidelines to follow:

• Check mirrors and blind spots: Before deciding to undertake, thoroughly check your mirrors and blind spots for approaching vehicles. Signal your intentions early and make sure the lane you're moving into is clear.
• Maintain a safe distance: Once you've moved into the left-hand lane, maintain a safe distance from the vehicle in front of you. This will give you ample reaction time in case of any sudden stops or changes in traffic flow.
• Stay focused: It's crucial to remain extra vigilant while undertaking. Keep your eyes peeled for any potential hazards, and be prepared to abort the maneuver if necessary. Remember, your top priority is to ensure the safety of all road users.
• Avoid distractions: Refrain from engaging in distracting activities, such as using your phone or adjusting the radio, when undertaking. These actions can compromise your ability to react promptly to changing road conditions.

By following these guidelines, you can minimize the risks associated with undertaking and make informed decisions while navigating UK roads. Ultimately, the key to safe driving lies in maintaining awareness, respecting other road users, and adhering to the Highway Code's recommendations. Happy—and safe—driving!