The combination of the documentary, radio advert, and print advert was effective because they all linked together through shared elements like the title "Emergency Stop", slogan "emergency stop, brakes on", and imagery of a ripped learner license plate. These common elements created a clear and distinctive message about the documentary across all three texts. Additionally, the voiceover, scheduling details, and some graphics were shared between the texts to further reinforce the connections for audiences and encourage them to watch the documentary.