A man who works a switch or set of switches on a railway; a pointsman.
A man who has charge of the points (point, n.1 21k) on a railway.
a man who attends to a set of switches on a railway, a switchman, pointsman.
A woman who has charge of the points (point, n.1 21k) on a railway.
A person who has charge of the points on a railway; = pointsman, n.1