“What are the content trends and differences for outdoor signage versus indoor signage?”
In looking at both outdoor and indoor signage, you have to recognize the differences in objectives and the audience to whom you are communicating. We often forget about the environment in which our audience is viewing content, let alone the position they may be in to react accordingly towards any “call-to-action” messaging. It’s not so much a difference in trends, but more towards how those content trends are delivered. In other words, it all comes back to situational relevance. You can only expect your audience to view, react or interact with content that is appropriate to them at a specific engagement.