Is there a law on how close to the road on Route 38 a housing development can be builit?

I was wondering  if anyone knows how far the setback from the road can a new development can be built?  It seems to me that Heatherwood, which is going to look beautiful, comes really close to Route 38.  The setback is really close to road. My concern is that if a car were to go out of control and leave the road, it could go right into the building.  That could be a catastrophe.