e feet, reaching a
             catchment of 4.1 million within 45minutes drive. atchment area of
             around 750,000 to one million people
             Typically, Costco stores draw around 80% of their sales from within
             approximately a 30-minute drive time. This trading pattern is drawn
             from the experience of Costco (Docklands), and reflects the fact
             that people are attracted from a very wide region in order to shop
             The Primary Trade Areas have been illustrated in figure 1.1 to
             demonstrate Costco's site trading influence. The primary trade are
             ...