100 Years Evolution Of Traffic - 1910s Till The 2010s ✦ Safe & Genuine
: In 1920, Detroit police officer William Potts invented the three-color electric traffic light , adding an amber (yellow) light adapted from railroad signals.
: The first drunk driving law was enacted in New York in 1910 . 1930s – 1950s: Infrastructure & Computerization 100 Years Evolution of traffic - 1910s till the 2010s
Post-depression and war eras saw a focus on expanding road networks and basic automation. : In 1920, Detroit police officer William Potts
: In 1920, Detroit police officer William Potts invented the three-color electric traffic light , adding an amber (yellow) light adapted from railroad signals.
: The first drunk driving law was enacted in New York in 1910 . 1930s – 1950s: Infrastructure & Computerization
Post-depression and war eras saw a focus on expanding road networks and basic automation.