$1,200
Okay, you're talking about the delay when the light turns red for one direction and then turns green for another direction. My guess would be that it would be to ensure that the intersection is clear before another direction of travel is given the green.
It is 490 without traffic school or 544 with traffic school (That is in Orange County) In June 2013.
The first electric traffic light was installed in Cleveland, Ohio in 1914 at a cost of around $2,000.
The shortest distance is 35.8 miles, but that depends on where in LA you start from, where in Orange county you go to, and how much traffic there is on the way.
A traffic light typically uses 100-150 watts when all lights are illuminated. This translates to around 876-1314 kWh per year, depending on the location and usage of the traffic light.
The cost of a traffic light varies and depends on the intersection it is placed. Traffic lights can cost anywhere from $80,000 to $100,000.
530.00
About 1.3 seconds
Some intersections have traffic lights instead of round abouts because there is too much traffic on some intersections for a roundabout to be safe. Roundabouts have to have a certain amount of traffic to be safe enough for no traffic light.
3 seconds of light in vacuum means a distance of 899377374 m. 100 seconds of sound in air of a temperature of 20°C or 68°F means a distance of 34300 m. Light covers a much longer distance.
It is: 186,000 miles per second