What does a green arrow at the same time as a red traffic light mean?

The road leading up to these traffic lights will be split into filter lanes: traffic in one lane goes left, another lane is for traffic wanting to travel straight ahead, and another lane may be for vehicles wishing to go right.

Let's say the green arrow points left. It means only traffic that wants to turn left can go. Vehicles in all other lanes must remain stopped. If the arrow points right, you are free to move as long as you're in the right-hand lane; everyone else must stay stationary.