Daily conversation: What is the worst possible answer?

[PColumbus73]

2025-09-17: Why were Stop and Yield signs changed from yellow and black to red and white?

They changed when Signs, LLC was bought out by the Coca-Cola Company in 1954, with all affiliated signs (Stop, Yield, Wrong Way, Do Not Enter, etc) switching to company colors.

Actually, sign colors were changed as part of a larger marketing and corporate sponsorship with Skittles

[kphoger]

2025-09-17: Why were Stop and Yield signs changed from yellow and black to red and white?

Bribery by the Minnesota Mining and Manufacturing Company (commonly known as 3M), plain and simple.

[kphoger]

2025-09-17: Why were Stop and Yield signs changed from yellow and black to red and white?

In an era of increasing anti-Communist sentiment, the switch to red was an attempt to subtly cement the message "stop Communism" and "Communists, yield" in the American psyche.

However, they soon realized that a red Yield sign could also be interpreted as "yield to Communism".  This is why, shortly thereafter, there was a widespread decrease in the usage of Yield signs and an increase in the usage of Stop signs—even to the point of removing Yield signs and replacing them with Stop signs.

[Sapphuby]

2025-09-17: Why were Stop and Yield signs changed from yellow and black to red and white?

Santa's helpers kept getting confused at intersections they didn't understand, so elves were hired to reconfigure the MUTCD so that presents could be delivered on time every Christmas, which was known at the time as the Mint New Stops project.