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Table 9. Validation Process: Prediction of Person Miles Using American Community Survey Data (ACS)
Variable Regression parameter Value for Census Tract 19113000400 (from 2005-2009 ACS) Col. (A) * (B) Col. (A) Col. (B) Col. (C) Intercept -18.5328 NA -18.5328 Nat. Log (HH Income) 6....Table 8. Correlation between Independent Variables (Excluding Life-cycle Indicators) for the Sample Used to Predict Person Miles in the Midwest Region, by Urban Group
Census Region/ Division Urban Group Variable Household Income Count of Household Vehicles Count of Household Members Number of Workers in Household Homeowner 1+ child Midwest Urban Household Income 1.00 0.39...Table 7. Comparison NHTS Mean Values and Regression Estimates
Census Region/Division Category and Urban Group Household Person Miles Traveled Household Number of Person Trips Household Vehicle Miles Traveled Household Number of Vehicle Trips Mean Std. Error Reg. Estimate...Figure 4. NHTS Vehicle Trip Means and 95% Confidence Intervals
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Figure 3. NHTS Vehicle Miles Means and 95% Confidence Intervals
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Figure 2. NHTS Person Trip Means and 95% Confidence Intervals
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Figure 1. NHTS Person Miles Means and 95% Confidence Intervals
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Table 6. Breakdown of NHTS Households by Census Region/Division and Urban Group
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Census Region/Division Urban Suburban Rural Total Northeast Region 6,371...Table 5. Urbanicity Index: Count of 2010 Census Tracts by Category
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Category Census Tracts With population density centile Number...