About the counting clock on Tokyo street

  This article doesn't have any photos for I just observed on the way to school. I sometimes see the Japanese people collect the data by observing and counting. The collected data may be used for the routing traffics later.
  The main point that I want to focus on this article is the organization and the attitude of the men who were on duties.
  Firstly, at a cross-road, there will be 8 people. Each of them will watch and count the number of passengers on the pavements. It's a usual arrangement, isn't it? However, with each main street, they will need 4 more people who also do counting job. The data will be collect twice on each pavement, so the average number/rate will be more accurate.
  Secondly, the tools which are used are very simple. They are just the counting clock only. They are sold just 100 yen in most of 100-yen stores in Tokyo. The clock are lined up equal to the number from unit, ten and hundred .... With each passenger crosses, the man just simple presses the button on the clock.
  This is just a very simple thing but I think that it's not easy to arrange and do that in my country.