Driver's License Test Prep
California Practice Traffic Lights

A flashing yellow left-turn arrow means that you may turn left:

  1. A.
    After yielding to oncoming traffic and proceeding with caution. Correct
  2. B.
    With protection from oncoming traffic during the flashing phase.
  3. C.
    Only when a solid green arrow appears later in the cycle.
The Why

The answer is "After yielding to oncoming traffic and proceeding with caution."

A flashing yellow left-turn arrow lets you turn left, but the turn is not protected; yield to oncoming traffic and proceed with caution. Drivers who treat every lit left-turn arrow the way they treat the solid green arrow assume oncoming traffic is stopped and skip the yield, which is what makes choice B tempting.

Why the others miss

The traps in the wrong answers

B. With protection from oncoming traffic during the flashing phase.

Only the solid green arrow provides a protected left turn; the flashing yellow arrow is explicitly unprotected against oncoming traffic. This answer carries the protected-turn rule from the solid green arrow over to the flashing yellow, assuming any lit left-turn arrow stops the oncoming lane.

C. Only when a solid green arrow appears later in the cycle.

The flashing yellow arrow authorizes the left turn on its own once you yield; no later green-arrow phase is required. This answer reads the flashing yellow arrow as a warning of a coming green arrow the way a solid yellow warns of a coming red, and waits for that phase instead of yielding and turning.

The Rule

This question tests your knowledge of Traffic Lights in California. Source: California Driver Manual, "Traffic Signals: Flashing Yellow Arrow," p.34..

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