Garrett Morgan See website: http://inventors.about.com/library/inventors/blgas_mask.htm ---- The world's first traffic light was operating in London, England, even before cars were invented. It was a revolving gas-lit lantern with red and green signals, but in 1869, the light exploded, injuring the policeman who was operating it. In the early 1900s Garrett Morgan, an African-American living in Cleveland, Ohio, developed the electric automatic traffic light, originally based on a semaphore-system. Shortly after this, Detroit police officer William L Potts developed the first 4-way three colour traffic light using red, amber, and green railroad lights.
No he invented the automatic oil cup and lubricator.
A "signal plan" is typically a document that outlines how signals are used or managed, whether in traffic control or communication systems. It specifies signal timings in traffic or signal allocation in communication networks.
it was invented on 1888
the first traffic light was invented in usa i didin't know who invented it the first traffic light was not automatic someone is controling it that what i all know about the trafffic light i don't know who invented the gas mask
Garrett A Morgan
Traffic signals were invented by Garrett A Morgan in 1923.
yash
GARRET MORGAN
Garret Morgan
he invented the traffic signal back then because to many people were getting hurt
No he invented the automatic oil cup and lubricator.
The first inventor was Garret A. Morgan at around 1923.
A police office named William Potts of Detroit Michigan in 1920 invented the traffic signal. His race is not mentioned.
Garrett Augustus Morgan, Sr. is credited with having a patent for a non-electric, T-shaped pole traffic signal in 1923. Although Morgan is credited with a patent there were already numerous traffic signal systems patented and in production.
stop... A police officer assuming control of that intersection will have precedence over a traffic signal. If their signals are contrary to the traffic signal, you'll follow their signal.
Stop light is another name for a traffic signal.
The traffic light as we know it today was invented by Garrett Augustus Morgan, the son of former slaves. Before that there was a gas lantern signal light in England, but that was before automobiles. There was a railroad light version later, but it wasn't like our modern version. If you didn't mean "traffic light" then i don't know.