On a busy road the only safe option is to make two crossings: stay on the right and cross and then cross again. It is very annoying. Depending on the situation

On a busy road the only safe option is to make two crossings: stay on the right and cross and then cross again. It is very annoying. Depending on the situation, you can indeed move to a lane that turns left. But it requires cooperation from drivers. So in places where drivers are either hostile to bikes or likely to overlook bikes, it is not a safe way to turn.