How To Merge In Traffic (Seattle, You're Not Going To Like This)
kuow.org
kuow.org
http://de.wikipedia.org/w/index.php?title=Rei%C3%9Fverschlus...
One example: I am sitting in a car and will turn to a side road a bit ahead where the road splits in to several lanes. But due to the fact that the que is longer I can't turn on to the second lane. And it have to sit in the que and make it even longer.
That being said, merging as late as possible is the Nash equilibrium. Embrace it! (although it's clearly better for me if you don't).