I used to believe that at dusk someone would turn on a switch that would give traffic lights more power so the red, yellow and green could shine brighter, so drivers could see them better. After all, it was dark, and the lights looked brighter to me. Near sun-up, I believed that they would turn the power back down so the lights would not be as bright during daylight, because they didn't need to be.
And this was long before any energy crisis.
A childhood belief about traffic lights

others believed things like this
- i used to believe that red yellow and green meant "ready, set, Go!" on traffic lights..— cabagona
- I believed that traffic lights had police officers inside them, turning the lights on and off...— CrowHeart
- I used to believe that God controlled the traffic lights. He would decide when it was everybody's turn to go.— Amanda
- when i was about 5-8 i used to believe that oompa loompas lived in traffic lights and controlled the lights!!— ~wierd ~
- I used to believe that the yellow light in traffic-lights meant Go Faster!— M. L. E.
- For a very long time I believed that there were little men underground that changed the traffic lights!— Melissa