Borrowing Good Ideas

On a recent trip through Lexington, I noticed the street name signs have been switched out for MUTCD-compliant ones. When a community upgrades its signage, we usually see either text-only, text-plus-graphic, or text-plus-seal.  Adding a graphic element usually adds a few inches to the length of the sign, thereby reducing the area available for text.  The new signs in Lexington, however, add just a very small graphic element just above the smaller type of the street designation:

I won’t hold my breath, but what if Worcester (gasp) actually borrowed a good idea from somewhere else?

Or what if we improved on a good idea from somewhere else?