Note: All correlations are expressed as bivariate regression tests of "t" to facilitate comparison.
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* significant at 0.01 level ** significant at 0.05 level *** 1.00 < t < 2.00 d.f. = degrees of freedom HOV = high-occupancy vechicle NA = not applicable SOV = single-occupancy vehicle SRSD = studentized residual TDM = travel demand management TMA = transportation management association TSM = transportation system management U = data are unavailable VHT = vehicle hours of travel VMT = vehicle-miles traveled * Significant at 95% confidence interval.
