Local data

Every community has her own injury panorama.

E.g. in a costal town dependent on  fisheries the main injury types will be different from an inland community where farming and logging are predominant. Continuous prospective data on injuries are by many thought to be a prerequisite for describing the injury panorama for a community.
Analysis of these data are useful for prioritizing targets for interventions.

Evaluations of interventions may be done by doing before and after intervention comparisons.
For better assessment of causality between intervention and observed reductions of injuries in a population, comparable data from a control population, not exposed to the intervention, is advantageous (recommended by the Cochrane group). 

Local data is the locomotive that keeps the injury prevention train on its track!