Click to modify symbology. Under the Appearance tab, select Symbology and choose Unique Values.
As you have learned in previous lessons, symbolize your layers based on FLD_ZONE to have good visualization of various values. Remove the outline for values.
Zoom to UP_BUILDING layer. You should have a clear visualization of floodways with different categories.
Based on FEMA’s information3, categories A, AE, and AO are all 1-percent-annual-chance flood. A is determined using approximate methodologies. AE is created based on detailed methods. Finally, AO represents shallow flooding where average flood depths are between 1 to 3 feet. X represent areas that are not in a floodway. For this study, you are going to consider all three A, AE, and AO layers as one floodway category.
3FEMA: Flood Zones [1]