I happened to be recruited as a pallbearer last weekend and here are some observations I made on the way.
Issue: Emergency Room sign doesn't look like urgent
Solution: color it in red
Lesson: when design, going along with people's mental model can bring intuitive understanding
Positive: though the color can be distinctive, You Are Here sign was fairly easy to catch (c.f. many maps I've seen in the past failed in this regard)
Issue: eyes move much in finding information
Solution: place the legend right below of the map
Lesson: like Fitts's Law popularly applied in web design to reduce mouse pointer movement from one sequential action to the next, the Law also needs to be applied in print or sign board to reduce eye movement.
#1
Issue: though the information is sorted by funeral home number, floor info is displayed first; viewers in a rush may spend a couple more seconds to find their place
Solution: make first column as sort-by (e.g. Funeral Home special 1, 3, 5, etc.)
Lesson: in designing a table, try to sort its content by first column or so
#2
Issue: too many repetitive basement texts
Solution: use B1 (basement 1) and B2 only once and sort the table by floor
Lesson: in designing information architecture, consider applying MECE (mutually exclusive and collectively exhaustive) principle
#3
Issue: fourth column title is missing
Solution: simply add one ;)
