How Huff Model Calibration By Survey Data works

For this method of calibration, you must make an appropriate division of your study area into small subareas. The main difference from the Huff Model Calibration By Real Data method is that you are calculating the probabilities here based on survey data showing the proportions of trips made from each subarea to the shopping centers. Therefore, you don't need to have a point customer layer, because the survey is operating directly on the subareas.

The survey data must be collected in a survey table using one of the following formats: