Posted March 13, 2019 | by dude Code of Ordinances Of Union County, Illinois. 24–3‑5 Posting Signs Appropriate signs shall be posted to show all through, stop and yield right-of-way streets, all one-way streets and alleys and all stop intersections. (See 625 ILCS Sec. 5/11–304) Chapter: Article III — Stop and Through Streets, Chapter 24 — Motor Vehicle Code [24–1]