Life-line of the nation" poster
The pattern
This still is filed under Us-versus-them positioning.
Define
The buyer is invited into a side. The product is what we use. The named other is what we refuse.
Mechanism
Identity contrast. Choosing the offer is choosing a group. The out-group does as much work as the claim.
Verdict
The category is crowded
Why it works
The low angle makes the train look massive and unstoppable, perfectly matching the 'life-line' metaphor in the headline. The stark, bold typography reinforces the strength of the message.
Steal this when
You want to instill pride and emphasize the monumental importance of an industry or service.