QUOTE (Bartholomew @ Dec 2 2012, 08:00 PM)
Not a statistician then? This is how most traffic and usage surveys are done. Samples are taken and used to establish patterns. A snapshot taken 12 times in six hours in Newbury over three days gives a good idea of what is happening. The results were very consistent over the three days showing that the samples were reasonably accurate.
Just remember this data only pertains to footfall not shoppers. Someone working in Newbury could walk through Northbrook Street four times in a day. Even if people were counted going into individual shops it does not mean that they actually purchased anything. The only true way to know if people are using the shops is if the shops manage to survive.