Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Romantic, but doomed to fail.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


   

Purple Light

Augmented Traffic Signal
 
(0)
  [vote for,
against]

Conventional traffic lights typically consist of three colours. Proposed is an additional smaller light, in purple, just above the red one.

The purple light illuminates if, and only if, the time remaining until the red light changes is greater than 20 seconds. If you see the purple light, turn your engine off, save the planet, and so forth. If it's not there, you've not got long to wait.

I believe this is much simpler, and with far fewer drawbacks, than a countdown timer.

mitxela, Nov 06 2017

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)






       Sorry, I was hoping the purple came on in the am.
wjt, Nov 07 2017
  


 

back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle