You may overtake another vehicle on the left (undertake) in specific situations such as:
- When the vehicle in front is signaling to turn right and there is enough room to do so safely.
- When you are on a one-way street where all lanes move in the same direction.
- In slow-moving traffic when the right-hand lane is moving more slowly, you may keep up with the flow of traffic in your lane without weaving.
- In traffic congestion over multiple lanes moving in the same direction, overtaking on both the left and right is allowed.
- Just before and on a roundabout, overtaking may be done on either side depending on the situation.
However, overtaking on the left is generally discouraged and should be done with caution, ensuring it is safe and legal. Overtaking on the left is not allowed if it causes danger or hinderance or if road markings prohibit it. These rules are consistent with the UK Highway Code and driving safety guidelines and must be followed strictly for safe road use.
