Dec 12, 2011: NY Sunday Times magazine section had an interesting item.
See The Stop Sign wasn't Always Red
Contains some interesting tidbits on signage, and sign colors.
Mentions the 1935 creation of the Manual on Uniform Traffic Control Devices which recommended a yellow stop sign with Black letters. In the 1954 revision it was changed to Red with white letters.
Additional information can be found at The Evolution of the MUTCD
Reports, announcements, statistics from NHTSA, NTSB, FHWA, IIHS, and others related to Highway Safety
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