How much walking do you have to do every day?

A nurse told me that she wore a pedometer and discovered that she had to walk eight miles every day. At three miles an hour, that would come to 2.67 hours out of every eight that she works.

Henry Ford said that pedestrianism is not a highly paying line of work, so he designed the Henry and Clara Ford Hospital to minimize the walking that nurses have to do. In the case shown above, the nurse is effectively paid for 5.33 hours of every eight that she works. If this could be corrected, we would not have a nursing shortage because nursing salaries could be increased 40 percent or more without higher costs for patients or insurers.

Can anyone provide some information on how much walking he or she has to do every day?