If you are at a junction where there is an advanced stop line for cyclists, you should allow cyclists to move off ahead of you. When turning left, all driv ers, especially dri vers of heavy goods vehicles, must watch out for cyclists and motorcyclists going ahead or turning. On left turns, watch out for cyclists and mopeds close to the kerb in front of you or coming up on your left. Do not overtake a cyclist as you approach a junction if you are turning left; the cyclist might be continuing straight ahead.
You should give extra space when overtaking a cyclist, as they may need to avoid uneven road surfaces and obstacles. This is particularly important on wet or windy days.
Source: RSA