It is formed by the meeting of three bones: the humerus in the upper arm and the ulna and radius in the lower arm. Like all other hinge joints, the elbow permits movement in one plane, namely the flexion and extension of the forearm relative to the upper arm.
A Silent Hills(s) game made by one of my favorite developers(KojiPro) and directors(Del Toro)is a dream come true. The only thing that would make this absolutely perfect is if Akira Yamaoka was working on it as well.
What one can infer from this info is that Old Silent Hill was abandoned as of the 1980's following Dahlia's ritual, while the vacation town was still relatively normal until Silent Hill 2's events. Whether people lived in those parts after is not really known, though I don't believe people did.