Several months ago the left turn arrow from Whitney onto Mather mysteriously vanished from the signal. Now the oncoming traffic gets a red while the Mather bound traffic get a green. I've never been at a light where only one side of the intersection gets a green...without an arrow it makes you 'guess' if the oncoming traffic is stopped or not. I worry that there will be an accident because there is no obvious right of way. Why was the light taken down?