 With the traffic flow diagram, the mall owner is able to determine what is the most popular district of the mall, and may choose to lease their rental areas based on demand.Measuring outside traffic allows retailers to determine the number of people passing by the retail store on any given day and to estimate how many potential customers a location will be able to bring to the business.This metric looks at the number of people entering a store who had visited the store previously by tracking the unique WiFi signal ID transmitted by a smartphone.