The signal for your lane turns green, but a pedestrian is still finishing their crossing in front of you. What does that green signal actually entitle you to do?

1. Move off only when the way is clear, still giving way to pedestrians and to vehicles lawfully still in the junction
2. Proceed with absolute right of way, even over an emergency vehicle using its siren
3. Turn left, because a green signal always means turn left
4. Wait a compulsory three seconds before moving off