At the age of 16 you have the right to leave your parents' home and never have any contact with them again. (NB: I'm definitely not recommending that as a course of action!).
If you simply 'disappeared' (or 'ran away'), and your parents reported you as missing, the police would be barred from revealing your whereabouts to your parents. (Although they could tell them that they'd located you and that you were safe and well).
In just two months time (at the age of 17) you can also get married without your parents permission. (Again, I'm not recommending it!).
Chris