Ancient Web: Andrew Turnbull showed how stop signs changed

His field guide compares traffic-sign designs across editions of U.S. standards, noting that dates mean ‘earliest reference found,’ not necessarily first installation. That caveat matters: roads are not software releases, and old signs linger beside newer rules. A visual guide turned everyday roadside furniture into a history of public design.

Original sign guide: http://www.andrewturnbull.net/signs.html

Full Switchboard article: https://switchboardtechservices.com/articles/ancient-web-andrew-turnbull-cataloged-how-american-traffic-signs-changed/

#ancientweb #roadhistory #graphicdesign #transportation