Is it normal to indicate as you’re changing lanes?

Posted by Consistent_Bug2746@reddit | AskUK | View on Reddit | 129 comments

I recently spent two months recently in the UK and noticed a few things about indicator usage. In the UK, I often saw people indicating and then immediately changing lanes, or starting to indicate just as they were already moving over the line.

Back home, we follow a "3-second rule," where you indicate first, giving others time to see your intention before you actually change lanes.

Is this just how things are done in the UK, or are drivers flouting the rules? Is there no specific rule for how long you need to indicate before changing lanes?