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City of Lathrop Travel Demand Model and VMT Methodology October 28, 2020 Page 6 of 7 period. This VMT metric is used to determine transportation impacts for certain land use types such as residential and office uses, as well as provide inputs to a project's air quality, GHG, and energy assessments. Project's effect on VMT is measured by comparing VMT generated by all land uses within a selected geographic area for scenarios without and with a project or plan.A Project's effect on VMT provides a more complete evaluation of the potential effects of certain land use projects because it captures the combined effect of new VMT, shifting of existing VMT to/from other neighborhoods, and/or shifting of existing VMT to alternate travel routes or travel modes. For example, a new local grocery store has the potential to reduce home-based other (shopping) Residential VMT, as residents can now travel a shorter distance to obtain groceries. A Project's effect on VMT can be evaluated by comparing Project-generated VMT results for all land use categories from without and with a project or plan modeling scenarios. Baseline VMT represent the existing (Baseline) city-wide VMT for residential, office, retail, and industrial land uses. Baseline VMT is determined using the City of Lathrop Travel Demand Model's Base Year Scenario. When evaluating transportation impacts of future projects, VMT generated by the proposed project is compared to a Baseline city-wide VMT value for a land use type. As VMT assessments are conducted over the coming years, the VMT Baseline values will be updated with the analysis of the Comprehensive General Plan Update and Data from the 2020 Census. It should be noted that this will require transportation improvements and land use developments be added to the Travel Demand Model in order to update the Baseline citywide VMT per land use type. Total Residential Daily VMT is the sum of VMT generated by all residential uses located within a selected area (e.g., project area, city-wide, or model-wide).Vehicle trip types that contribute to Total Residential Daily VMT include home-based work, home-based school, and home-based other trips. Residential Daily VMT reflects how close households are to complimentary destinations Qobs, shopping, schools, etc.), as well as the available transportation options and demographics of the household (i.e. single family, multi-family, or age restricted dwelling units). VMT Per Household is equal to Total Residential Daily VMT divided by the total number of households located within the selected area.VMT per Household is an efficiency metrics that is used to express change in VMT relative to change in number of households in a selected area. VMT Per Capita is equal to Total Residential Daily VMT divided by the total number of residents located within the selected area.VMT per Capita is an efficiency metrics that is used to express change in VMT relative to change in number of residents in a selected area.