You can never cross a solid white line, unless there is an obstruction ahead on the left side, that is stationery or moving less than 15km/h. Like a slow moving horse for example. Although this is allowed, always make sure that the conditions are safe; not in a bend, not on a brow of a hill, not when a car is approaching from opposite, not if approaching a junction, etc… Basically, always make sure that you have enough view and space ahead to do such a maneuver.
Posted in: During The Lesson!, The Driving Ability Test