Post #2497219

@realsimon@mastodon.green Yeah that's because we standardized back in 1920's, and what we standardized ON was basically whatever guerilla signage various auto clubs had been putting was most popular in the 1910’s We tried adopting Vienna Convention signage in the 1970's but the trial was an unmitigated disaster, so instead we settled for slowly updating the MUTCD to start replacing text on signs with symbols. The only remaining vestiges of the attempt are a handful of rare signs with metric units.