Overtaking and passing should be done with care because of oncoming traffic. Solid and Broken A broken yellow line alongside a solid yellow line indicates that passing is permitted on the side of the broken line, but not on the side of the solid line. Double Yellow Double solid yellow lines mark the center of the road and separate oncoming traffic. Passing is not allowed in either direction. Making a left turn is the only lawful crossing allowed over double yellow lines.
White lines separate lanes of traffic going in the same direction.
Broken Broken white lines separate lanes of traffic going in the same direction, and may be crossed with care. Arrow Solid white lines are used for turn lanes and to prevent lane changes near intersections. Arrows are often used with the white lines to indicate which turn may be made from the lane. When a lane is marked with a curved arrow and the word ONLY, you must turn in the direction of the arrow. When a lane is marked with both a curved and straight arrow, turning or proceeding straight ahead is allowed.