1) Railway occupation 2) Traffic cop 3) Traffic policeman in London 
• (n.) A man who has charge of railroad points or switches.
Points'man noun ; plural - men (-m e n). A man who has charge of railroad points or switches. [ Eng.]
[n] - someone who is the forefront of an important enterprise 2. [n] - a soldier who goes ahead of a patrol[n] - (British) a policeman stationed at an intersection to direct traffic
noun a soldier who goes ahead of a patrol noun a policeman stationed at an intersection to direct traffic
The player who plays the point position on offence (also see Point Position).