What do you think the purpose of the Dumb Ways to Die video is?

Watch the following safety campaign designed for Metro Trains in Melbourne:

Dumb Ways to Die

The ultimate goal of any social program or intervention is reform. Thus, evaluation research studies the effectiveness of social interventions and programs.

What do you think the purpose of the Dumb Ways to Die video is? If you were going to do evaluation research on the effectiveness of the Dumb Ways to Die video, how would you measure its effectiveness?
The link for the movie is ;