The Household Relocation Choice Model is similar in form to the Employment Relocation Choice Model described above. The same algorithm is used, but with rates or coefficients applicable to each household type. For households, mobility probabilities are estimated from the Census Current Population Survey, which provides a national database on which annual mobility rates are computed by type of household. This will reflect differential mobility rates for renters and owners, and households at different life stages.
Application of the Household Relocation Choice Model requires subtracting mover households by type from the housing stock by building, and adding them to the pool of new households by type estimated in the Demographic Transition Model. In the database, this is accomplished by setting the location field for the moving households to a null value. The combination of new and moving households serves as a population of households to be located by the Household Location Choice Model. Housing vacancy is updated as movers are subtracted, making the housing available for occupation in the household location and housing type choice model.