If you want truly unique signs:
Who should get it
You can find various versions and similar sign packs on the major community hubs: Omsi 2 Additional Traffic Signs Download
Additional Traffic Signs 1.0.1 * Additional Traffic Signs. * Voraussetzungen / Requirements. * DOWNLOAD - 1.0.1. Marcels OMSI-Forum Additional Traffic Signs 1.0.1 - Marcels OMSI-Forum If you want truly unique signs: Who should
No activation needed. If a map you download requires the pack, simply having it in your Sceneryobjects folder prevents missing object errors. Omsi 2 Additional Traffic Signs Download