I'll keep it relatively short 
We live in a small gathering of houses which is up a private road. There is about 20ish houses up this road and the road is very narrow and has a high footfall of pedestrians using it as a shortcut into town.
There is a house at the end of this road and the person living there is the source of my gripe.
He drives up the road extremely fast, too fast to be acceptable. It's very narrow with a lot of paths leading onto it with multiple blind corners. Children play along it and most of my neighbours are at deaths door and walk along it. A reasonable estimate of an appropriate speed along it would be 10mph or less.
I have had to jump out of his way on three occasions. My wife was out today with my son in the pram and today was the third occasion she has had to dodge him. He came around one of the blind corners too fast and met my wife with the pram and another lady with a toddler on a bicycle. He almost hit them.
My wife called me in tears today and I've had enough. I'm going to go to his house tomorrow to have a polite word and request that he consider taking it easier along the road. Sounds easy, right?
I spoke to my elderly neighbour who also expressed concern with his driving. She approached him before and he became defensive and abusive. If he was like that to an old lady then I expect he will respond in kind to me. I'll give him the benefit of the doubt until then though.
Now to my question. If he does dismiss my request, what course of action should I take? It sounds harsh but would the police be interested? If not, who else would you approach in a similar situation?
I genuinely think he drives dangerously and it's only a matter of time before he takes down a pedestrian.
Oh, and yes I will be bringing my keyboard tomorrow in case I need to go 31337 on his ass.

We live in a small gathering of houses which is up a private road. There is about 20ish houses up this road and the road is very narrow and has a high footfall of pedestrians using it as a shortcut into town.
There is a house at the end of this road and the person living there is the source of my gripe.
He drives up the road extremely fast, too fast to be acceptable. It's very narrow with a lot of paths leading onto it with multiple blind corners. Children play along it and most of my neighbours are at deaths door and walk along it. A reasonable estimate of an appropriate speed along it would be 10mph or less.
I have had to jump out of his way on three occasions. My wife was out today with my son in the pram and today was the third occasion she has had to dodge him. He came around one of the blind corners too fast and met my wife with the pram and another lady with a toddler on a bicycle. He almost hit them.
My wife called me in tears today and I've had enough. I'm going to go to his house tomorrow to have a polite word and request that he consider taking it easier along the road. Sounds easy, right?
I spoke to my elderly neighbour who also expressed concern with his driving. She approached him before and he became defensive and abusive. If he was like that to an old lady then I expect he will respond in kind to me. I'll give him the benefit of the doubt until then though.
Now to my question. If he does dismiss my request, what course of action should I take? It sounds harsh but would the police be interested? If not, who else would you approach in a similar situation?
I genuinely think he drives dangerously and it's only a matter of time before he takes down a pedestrian.
Oh, and yes I will be bringing my keyboard tomorrow in case I need to go 31337 on his ass.