Be prepared for the lights to change to amber, even if they are currently green. Look for pedestrians around the crossing, especially anyone who might be reaching out to press the button.
An amber light means you must stop if it is safe to do so. Red means you must stop.
A flashing amber light means you may proceed if it is safe to do so and the crossing is clear. Make sure there are no pedestrians on the crossing before you proceed at the flashing amber phase.
For pelican crossings, the presence of an island does not divide the crossing into two separate crossings. However if a pelican crossing is staggered either side of an island, it does become two separate crossings.Get animated examples with the interactive Pedestrian Crossings app for iPad