Brief: Apollo Preventive Healthcare. You never know what life has in store for you. At the present moment, you could be healthy and might not have any symptom of major diseases. But few months or few years from now, your might end up having them. Its better to detect them in advance and get cured. 

In other words, try to look what's ahead of you and get treated now. And to communicate the, traffic signs were used an visual metaphor.