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NYC 9/11 Public Portal Document '<asa=ii=53«c?jsaSBE:p^

27 residential property. o The jobs by number of people who work in each zone, and the resident workers by number of employed persons who reside in each zone. o The average income of the workers who work in a zone for each zone. o The quantity of shopping and other commercial floor space in each zone. o Recent real estate sales prices for the market value of commercial property. o A vector of housing, neighborhood and socioeconomic attributes which measure the residential attractiveness of each zone. These attributes may include the sizes of houses in each zone, the housing age distribution, the income composition of the zone's residents in recent years, the distance from the zone to key metropolitan facilities and amenities such as waterfronts and parks. o A set of parameters and coefficients, the values of which are determined in model estimation. The procedure for compiling data sets, including the computer programs developed to perform data preparation tasks and the form of the model's final geographic disaggregation, are discussed in Appendix A. On the output side, the model produces the following results: o The number of commutes from the workplaces in each zone to the residences in each zone (e.g., the work-based origin-to- destination matrix, or the choices of residential location). o The number of shopping trips from the residences in each zone to the commercial destinations in each zone.

o The number of occupied and vacant housing units in each zone. o The rent per occupied housing unit in each zone.

o The rent per sguare foot of commercial floor space in each zone. o The aggregate value of commercial and residential rent. o The aggregate' value of consumer surplus change in the population (taking into account the imputed changes in travel times

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