The data needed in this scenario is a combination of personalized data as well as aggregated data of the population. Personal data includes activity tracking, vitals, in-home sensors, medical devices data and health records. With the prevalence of wearables and their increasing sophistication, much of this data can be captured. In this scenario, personal medical equipment and health agencies are able to integrate their systems for deeper insights into the health of the individual. Aggregated population health data can be gathered through personal sources and health agencies to provide demographic trends that can provide more responsive emergency services. Weather and environmental data will be useful in predicting and locating potential problem areas and can be captured by sensors throughout the city.