America is a big country, and with the love affair of the open road America hasn't been shy about paving the way from one coast to the other.
However, it is not often mentioned about just how many roads the USA has. Believe it or not... According to Fun Factz, America has paved enough roads to circle the earth 150 times! While the red, green, and yellow lights on our roads are pretty universal the world over, they weren't originally created for cars. The idea of signal lights was first used on railroads to prevent train collisions. The idea worked well enough that, once the technology was perfected, the signals were adopted all over the world. The original pattern was red for danger, green for caution, and white to go. However, since white could have been easily missed against a starry sky, green became go, and yellow was put in as the caution light. Say you're driving down a four-lane highway, and you know your exit is coming up. You have your eyes peeled, and you're checking your mirrors to be sure you can slip over to the left or the right once you see it. Don't panic... just relax. An easy trick to remember. Simply look at the position of the exit number on the highway information sign. If the exit number is aligned with the right, the exit will be on the right. If the exit number is aligned with the left, then it will be on the left. So take a breath, and enjoy the drive or ride. Nana
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