The flashing yellow arrows seem to be confusing most people. Why not get rid of the flashing yellow arrows and use the green arrow for turning left at all times.
I am finding our traffic busy when the yellow arrows are flashing and turning left can still be a hazard.
The timing of the lights is not consistent with the heavy traffic hours.
Farmington lights are turn left on green arrow only. I do not have any problems turning in the traffic there.