
Why was the traffic light late for his date?
It took him too long to change!
Crowd Pleaser
Did You Know?
The first electric traffic light was installed in Cleveland, Ohio in 1914! Traffic lights typically change every 60-90 seconds depending on traffic flow. The phrase "getting ready to change" works for both changing clothes for a date and changing light colors! Red means stop, yellow means caution, and green means go - a system used worldwide.




