Interesting YouTube video by Road Guy Rob on sign standards / MUTCD https://www.youtube.com/watch?v=pVkzCbFLA9k
There's already a thread on Road Guy Rob's videos
https://www.aaroads.com/forum/index.php?topic=27275.msg2688572#new
https://www.facebook.com/groups/96206174878/permalink/10161967309484879/
Interesting one of CA numbering scheme on license plates in their state.
Let's stick to the existing thread on Road Guy Rob's videos so we don't have two separate conversations going about the same stuff.
https://www.aaroads.com/forum/index.php?topic=27275