Turning can be dangerous, because it usually means you have to cross the path of other vehicles. You should not turn unless you can do so without obstructing or endangering other traffic and unless you can do so within the restrictions of the rules of the roads and any signals, signs and road markings.
Intersections have specific rules attached to them. You have to stop for pedestrians on or entering a pedestrian crossing and you are not allowed to block the traffic flow when entering an intersection or crossing a traffic lane.
Make sure you are in the correct lane for the direction that you are travelling. Follow the direction of any mandatory white or yellow lane direction arrows on the road surface: white lane direction arrows warns of mandatory yellow lane direction arrows ahead - move into the correct lane in accordance to the arrows.
If there are no arrows, turn left from the left-hand lane, turn right from the right-hand lane and use either lane to go straight ahead. You should move into a similar position on the road you're turning into as your position on the road you've just left. For example, if you are on the left-hand side of the road, you should stay on the left-hand side of the road after you've turned; or if you are in a lane next to the centre line, you should turn into the lane next to the centre line if the road you turn into also has multiple lines.
To legally and safely make a left or right turn:
If you are turning left, use your left indicator. If you are turning right, use your right indicator. Be prepared to stop, even if the other driver should give way to you.
If you are turning left into another street or driveway:
After turning, adjust your speed so merge safely into traffic again.
If you are turning right into another street or driveway:
A right-turn bay is an area where vehicles that are turning right can wait until it is safe to turn, without holding up vehicles going straight through. You can't use the right-turn bay to pass a vehicle traveling straight ahead. As you approach the right-turn bay, the road will be painted with a white triangle with diagonal lines inside it, followed by one or more right-turn arrows. You can only drive over the white diagonal lines if you are turning right.
When two vehicles are turning into the same road at an intersection that has more than one marked in lane in both directions:
If you are driving out of a driveway:
You are normally allowed to make U-turns, as long as the road is clear in both directions and it is safe to do so. Make sure you have enough room to complete the turn and don't create a hazard for oncoming vehicles. You aren't allowed to make U-turns if a 'No U-turn' sign is displayed.
You can cross over the solid white no-overtaking line (if it is safe to do so) when making a turn to enter a driveway. However, bear in mind that no-overtaking lines are often marked where visibility is limited, so special care is required. It may be safer to turn further along the road, where visibility is better.