Can a traffic light turn green on both sides?

Typically, traffic lights are designed to prevent conflicting signals; therefore, a traffic light should not turn green for both sides of an intersection simultaneously. In some specific cases, such as at a T-intersection or with dedicated turn signals, lights may be coordinated to allow different movements, but standard traffic lights maintain safety by ensuring that opposing directions do not receive a green light at the same time. However, malfunctions can occasionally cause both sides to show green, leading to dangerous situations.