Traffic light (according to Law no. 22/2009 on Road Traffic and Transport: traffic signaling device or APILL) is a light that controls traffic flow is installed at the intersection, pedestrian crossing (zebra crossing), and where the flow of other traffic. These lights that indicate when a vehicle should run and stop alternately from different directions. Regulation of traffic at the intersection is intended to regulate the movement of vehicles in each group movement of vehicles in order to move alternately so as not to interfere with each other between the existing flow.

Traffic lights have been adopted in almost all cities in the world. These lights use colors that are universally recognized; to indicate the stop is red, carefully marked in yellow, and green means it can run.

Traffic Light

History of traffic lights

Inventor of the traffic light is Lester Farnsworth Wire. Beginning of the present invention begins when one day he saw a collision between a car and train horses. Then he thought how to find a traffic control safer and more effective. Actually, when it has no system perngaturan traffic with stop and go signals. Signal lights had been used in London in 1863. However, the use of signal lights suddenly exploded, so it is not used anymore. Morgan also was stop and go signal has a weakness, namely the lack of time interval for that road users are still many accidents. Morgan's invention has a considerable contribution to the regulation of traffic, it creates a traffic light the T This lamp consists of three lights, the stop signal (marked with a red light), go (green light), the position of the stop (light yellow). Yellow light that gives the time interval to start running or stopped. Yellow lights also provide an opportunity to stop and walk slowly.

DO NOT USE FOR ANY COMMERCIAL PURPOSES, PLEASE USE
FOR PERSONAL USE ONLY.

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Comments (2)

• |Registered |2009-11-11 16:23:31 kentutmania  - mantaaabbbbbb
  :) :) keren trafficlightnya om.. thanks banget udah dibikinin requesannya :D :D Ikutan agatheering atuuuhh..
  
  
  pasti lagi sibuk ma domba2nya yah.??
  
  
  Smangaaaaaaaaaaadddd...
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• |Registered |2011-02-04 23:38:31 col.darling  - Unable to download
  Hello,
  
  I am interested in downloading your traffic light pattern in the PDF form. When I click to download nothing happens.
  
  Thank you very much
  
  Colleen Darling
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• |SAdministrator |2011-02-08 08:18:10 admin
  hi collen,
  
  please using mozilla instead of other browser, it work to download the model
  
  
  Ryan
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