 |
Traffic lights were invented before stop signs. |
Science & Industry |
 |
| |
| Surprisingly, this complex signaling system predated the idea of a simple stop sign by nearly 30 years. Stop signs originated in response to appeals for some sort of safety signage to tame the chaotic streets of early 20th-century America, which lacked speed limits, directional signs, or any traffic laws. In the year 1900, New York businessman William Phelps Eno (considered the father of U.S. traffic law, though he never drove a car himself) wrote an article suggesting stop signs be placed at intersections. It took another 15 years, but the first stop signs were installed in Detroit, Michigan — the heart of the U.S. automotive industry — and the idea was soon exported to the rest of the country and around the world. | |
 | |
| Thank you for supporting our advertisers! | ||
| | ||
 | |||||||||
By the Numbers | |||||||||
| |||||||||
| |||||||||
| |||||||||
| |||||||||
Stop signs were originally black-and-white squares. | |||||||||
| Although red octagonal stop signs are a fixture of today's roads, the stop sign has undergone a few changes over the years. Early stop signs in Detroit were 2-foot square pieces of sheet metal with black lettering on a white background. The first official signs to use the iconic octagonal shape arrived years later in 1923, courtesy of the Mississippi Valley Association of State Highway Departments, which decided that the number of sides on a sign should convey the level of danger. Eight was the second-highest danger level. The highest is the circle, which technically has infinite sides, and is used for railroad crossings in the U.S. | |||||||||
| Thank you for supporting our advertisers! | ||
| | ||
| |||
Recommended Reading | |||
 | |||
| | |||
 | |||
| | |||
| + Load more | |||
| |||||||||
| 700 N Colorado Blvd, #513, Denver, CO 80206 | |||||||||
|
About Animacs
0 komentar:
Post a Comment