What does a flashing yellow signal at a pedestrian crosswalk indicate to approaching drivers?

• Proceed with caution and be prepared to stop for pedestrians.
  Explanation:

  "A flashing yellow signal at a pedestrian crosswalk indicates to approaching drivers that they should slow down and proceed with caution. Drivers must be prepared to yield to pedestrians who are in or about to enter the crosswalk."
• Accelerate to clear the crosswalk before pedestrians enter.
• Come to a complete stop until the signal turns solid green.
• Ignore the signal and continue driving at the same speed.