A central component of the New Jersey: Link to the 21st Century project is the calibration of TRANUS, a land use-transportation model, for use in the study of northern New Jersey. The model will be used to forecast the impact of transportation investments on economic activity in the study area. Within TRANUS, the distribution of population within the region will be a function of basic (e.g., manufacturing) economic activity, which will be exogenous to the model. Service employment (employment in industries that serve the local residents, such as grocery stores) will then be a function of population.