roadman vs representative

roadman and representative both are nouns.

Word	Noun	Adjective	Verb	Adverb
roadman	Yes	No	No	No
representative	Yes	Yes	No	No

As nouns, representative is a hypernym of roadman; that is, representative is a word with a broader meaning than roadman:

Other hypernyms of roadman include salesman, interpreter, spokesperson, voice.

roadman (noun)	representative (noun)
a salesman who travels to call on customers	an item of information that is typical of a class or group
a workman who is employed to repair roads	a person who represents others
	a member of the United States House of Representatives
	an advocate who represents someone else's policy or purpose

roadman (adjective)	representative (adjective)
	standing for something else
	being or characteristic of government by representation in which citizens exercise power through elected officers and representatives
	serving to represent or typify