The information is organized in map form (the spatial mode), which positions the color-coded points according to US counties. The visual and spatial modes work together to help us make comparisons between locations.
The spacial mode is relating to space and if you click the link below there will be an image of the spatial mode of the journey to work involving car. each color code goes with something on the map and according to that we can understand it and make comparisons. https://chartingtransport.files.wordpress.com/2010/07/car.png