And while you're at it look up the words "yield" and "merge". Learn to read the picture signs, you know the ones that tell you that your lane is ending...like where 495 goes from 3 to 2 lanes or Rt.6 goes from 2 to 1 lane.
He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself.
Thomas Paine