You need Immersive Vehicles Library for this to work!
Cool sign mod that adds 150+ signs!

BUT HOW DO I USE THEM?
EASY!

Place the sign!

You can remove it with RMB the "Wrench" item!

You can even edit some signs:

Reader section:
The sign pack / IV Official Sign Pack, or OSiP for short, is a mod that adds over 150 different road signs to minecraft. It ranges from simple restrictive and informational to danger and highway signs.

Features:
- 150+ Road / Traffic signs
- Customizable signs with custom text
- Dynamic poles
- Diagonal sign placement

How to use:
1. Craft poles with "metal tubes", place them with RMB
2. Craft signs at a "Custom Bench"
3. Place signs on poles with RMB
4. Remove signs with the "Wrench" item with RMB
5. Edit sign text (if supported) by pressing Shift+RMB with the "Wrench" item.