What are the squares with the numbers in them?
These are property icons. They are square, have a number and a letter inside, and are of a particular color. The number represents the sequence of the property in the file that was translated, the letter shows the status (i.e.; A = Active, S = Sold, etc.) and each status is a different color. Each icon is placed at the estimated location of the property and on the proper side of the street.