Visualize (available | in use | cycle complete | unavailable) for machine locations
The previous project used bar graphs, but that's best to show which machines are more prevalent at a given location, which isn't the primary goal.
Identify a color scheme for the site and for the availability statuses that matches nicely.
Perhaps a series of circles across the page instead of a bar graph? Or something changed so the washing machines and dryers aren't overtly compared?