Which of the following statements are NOT correct? A. Spatial interaction is reflected in the flow of people, goods and information. B. Gravity models are used for spatial interaction analysis. C. In a conventional gravity model with a decreasing distance-decay function, increasing the distance between two places increases their predicted interaction, all other factors remaining constant. D. The direction of spatial interaction is determined exclusively by intervening opportunities. Choose the correct answer from the options given below:
C and D only
C and D only are incorrect. A distance-decay gravity model predicts less interaction as distance increases, with origin and destination attributes and other factors fixed. Intervening opportunities can influence flows, but origin and destination characteristics and transport impedance also matter. Thus A and B correctly describe spatial interaction and its modelling.
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