Keep it Simple.

NCHRP SYNTHESIS 584 is the most downloaded TRB publication in July 2022
Here is the first of 5 key takeaways
Use maps, line, bar, and pie charts with a descriptive title that tells the story.
Simplicity in the design of the visualizations is a key to success. Success was often reported when a simple visualization effectively communicated a clear story that brought the significance of the raw data to life for its intended audience.
But,
Achieving simplicity is hard. Achieving simplicity requires considering many factors such as:
Simply tell a performance story with visualizations that resonate with your audience.
nap.nationalacademies.org/catalog/26651/visualization-of-highway-performance-measures