Traffic Signal turns 100 today

Started by DevalDragon, August 05, 2014, 09:32:14 PM

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DevalDragon

August 05, 2014, 09:32:14 PM  
Since nobody mentioned it, I thought I'd throw it out there.

http://www.chicagotribune.com/classified/automotive/chi-traffic-light-turns-100-today-20140805-story.html

Traffic Signal turns 100 today!

Brandon

#1
August 06, 2014, 12:37:15 PM  
Quote from: DevalDragon on August 05, 2014, 09:32:14 PM
Since nobody mentioned it, I thought I'd throw it out there.

http://www.chicagotribune.com/classified/automotive/chi-traffic-light-turns-100-today-20140805-story.html

Traffic Signal turns 100 today!

And yet, they missed the inventor of the modern three-lamp (red/yellow/green) and automatic traffic signal, Detroit policeman William Potts.  He invented the modern signal in 1920 and the controller in 1921.  The first one was at Michigan and Woodward, also known as Campus Martius.
"If you think this has a happy ending, you haven't been paying attention." - Ramsay Bolton, "Game of Thrones"

"Symbolic of his struggle against reality." - Reg, "Monty Python's Life of Brian"

Henry

#2
August 06, 2014, 01:15:46 PM  
I never knew that! Happy centennial to the traffic signal! :clap:
Go Cubs Go! Go Cubs Go! Hey Chicago, what do you say? The Cubs are gonna win today!

tradephoric

#3
August 06, 2014, 02:08:48 PM  
A few pictures of Detroit traffic lights.

Michigan & Griswold in background (just west of Campus Martius):


Congress & Woodward:


Cadillac Square (old Hudson's building in background) circa 1920:


Other pictures:



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