Signalling is
Always required before turning or lane changing
Not required when turning at T-intersections
Not required when turning at traffic lights with a green arrow
Explanation: It's also important to:
- Make sure you give yourself time for observations—look at who will be affected by your actions and whether you have enough space.
- Make sure your signal is clear. If you intend to turn at the end of the road, don't turn on your indicator as you're passing a side road—it will just confuse other road users.
- Cancel your signals. Don't leave your indicators on too long after a manoeuvre—other road users might mistakenly assume you're turning off the road when you're not.

