Bureau of Transportation Statistics (BTS)
BTS Home > Publications > Journal of Transportation and Statistics > Volume 5 Number 1 > Paper 2
Printable Version

Table A2 - Model for Change in Time Use Between 1990 and 1995: Workers

Excel | CSV

Independent variables Travel to Time at
Home Coefficient t Work Coefficient t Shop Coefficient t Other Coefficient t Home Coefficient t Work Coefficient t Shop Coefficient t Other Coefficient
% change in                              
Lane-miles -1.08 -0.23 -12.34 -2.16 -18.96 -6.47 -16.05 -2.83 656.17 12.63 -566.04 -10.27 -76.65 -6.96 34.95
Population 25.37 4.4 -0.58 -0.08 19.88 5.65 21.28 3.12 -105.22 -1.69 34.92 0.53 32.4 2.45 -28.06
Income 5.64 0.89 6.22 0.83 -13.81 -3.59 -9.66 -1.30 653.33 9.57 -688.50 -9.50 -17.95 -1.24 64.72
Gas prices -44.33 -14.99 -7.53 -2.14 -20.39 -11.29 -15.38 -4.39 504.62 15.76 -354.00 -10.41 -26.57 -3.91 -36.43
Sex                              
Male 0.75 2.9 4.22 13.59 -0.96 -6.06 0.01 0.05 -31.83 -11.28 11.84 3.96 -0.84 -1.41 16.8
Lifecycle (Adults, youngest child age)                              
1, NA -5.10 -3.36 0.57 0.35 -0.20 -0.24 -4.24 -2.64 1.3 0.08 7.79 0.45 -6.45 -2.07 6.34
2+, NA -0.39 -0.27 -0.69 -0.44 0.51 0.64 -2.35 -1.53 30.98 1.95 -46.06 -2.72 1.59 0.53 16.42
2+, 0-5 0.32 0.22 -4.61 -2.94 0.01 0.01 1.33 0.85 22.09 1.37 -38.10 -2.23 0.43 0.14 18.53
1, 6-15 -5.55 -3.25 0.9 0.48 0.1 0.1 -1.61 -0.87 12.7 0.69 6.07 0.31 -1.69 -0.47 -10.92
2+, 6-15 -1.03 -0.70 -0.88 -0.56 0.38 0.48 2.1 1.35 4.39 0.27 -33.21 -1.95 1.4 0.47 26.86
2+, 16-21 -3.34 -2.18 0.88 0.54 0.9 1.08 -0.78 -0.48 -14.16 -0.85 -28.85 -1.64 3.29 1.05 42.06
2+, retired, NA -3.22 -2.03 -3.87 -2.27 1.52 1.75 -0.90 -0.53 4.34 0.25 -31.25 -1.72 3.53 1.08 29.86
Month                              
January -0.28 -0.41 4.11 5.05 -2.10 -5.05 0.73 0.91 -24.83 -3.36 32.55 4.15 -5.70 -3.64 -4.48
February -2.05 -3.34 2.2 3.01 -1.18 -3.14 -0.84 -1.16 -32.95 -4.96 65.12 9.23 -8.43 -5.98 -21.89
March -0.93 -1.62 2.61 3.83 -1.41 -4.03 -2.43 -3.59 18.94 3.05 5.35 0.81 -5.60 -4.26 -16.53
April -3.96 -6.43 0.88 1.2 -0.65 -1.72 -2.96 -4.06 -9.67 -1.45 49.56 7 -4.44 -3.14 -28.76
May -2.33 -3.96 -1.46 -2.08 -1.06 -2.95 -5.84 -8.39 -11.04 -1.73 58.26 8.61 -4.03 -2.99 -32.50
June -2.09 -3.34 1.64 2.21 -0.39 -1.03 -1.98 -2.67 -17.08 -2.52 42.83 5.96 -2.70 -1.88 -20.24
July -9.54 -14.57 -2.34 -3.00 0.22 0.56 -3.95 -5.10 4.67 0.66 1.69 0.23 0.55 0.37 8.7
August -2.55 -3.65 1.65 1.98 0.19 0.44 0.86 1.03 -16.40 -2.17 27.15 3.38 0.73 0.46 -11.62
September 0.51 0.78 -0.02 -0.03 -2.13 -5.28 -2.40 -3.08 6.33 0.89 15.29 2.02 -6.87 -4.54 -10.71
October 0.66 1.05 2.57 3.44 -1.05 -2.75 -0.91 -1.23 -44.24 -6.52 44.26 6.14 -2.96 -2.06 1.68
November -3.42 -5.51 2.57 3.47 -0.39 -1.03 -1.98 -2.69 -35.80 -5.32 56.17 7.87 -4.68 -3.28 -12.46
Day of week                              
Sunday -2.86 -5.55 -1.24 -2.02 -1.64 -5.23 1.74 2.86 10.65 1.91 -21.55 -3.65 -3.60 -3.05 18.49
Monday 8.19 17.68 3.31 6 -2.46 -8.70 0.63 1.16 39.87 7.95 25.56 4.8 -10.93 -10.28 -64.17
Tuesday 8.39 18.19 5.85 10.65 -2.54 -9.03 -1.34 -2.46 35.4 7.09 33.43 6.31 -7.48 -7.07 -71.70
Wednesday 11.09 23.79 1.91 3.45 -2.33 -8.19 -0.30 -0.54 46.79 9.27 33.28 6.21 -7.95 -7.43 -82.50
Thursday 15.4 2.19 5.54 0.66 -3.18 -0.74 -3.41 -0.41 -217.37 -2.86 97.46 1.21 -13.11 -0.81 118.67
Friday 7.46 15.96 3.64 6.53 -2.12 -7.42 -0.99 -1.79 36.42 7.2 32.67 6.08 -1.49 -1.39 -75.59
Population density                              
250-499 -3.30 -6.69 -2.04 -3.46 -0.51 -1.69 11.84 20.23 -48.88 -9.14 -7.49 -1.32 -4.16 -3.67 54.55
750-999 1.33 2.34 1.17 1.72 -1.92 -5.50 10.86 16.06 -57.47 -9.29 -7.14 -1.09 -8.39 -6.40 61.55
1000-1999 -3.77 -7.01 -2.59 -4.05 -0.60 -1.83 8.82 13.87 -61.71 -10.61 3.11 0.5 0.94 0.77 55.79
3000-3999 -6.28 -12.41 -2.32 -3.85 -0.80 -2.60 12.37 20.64 -32.56 -5.94 -18.75 -3.22 1.88 1.62 46.47
5000-7499 -4.45 -9.28 -5.43 -9.50 -1.04 -3.54 9.21 16.22 -67.05 -12.91 18.07 3.28 3.4 3.09 47.29
Constant -13.95 -8.50 -1.62 -0.91 3.42 3.77 -8.09 -4.59 92.41 5.2 -24.44 -1.30 4.96 1.45 -52.69
r-squared 0.106   0.089   0.0385   0.068     0.0813   0.1022   0.513 Derived

NOTE: Derived indicates that the model was derived based on constraint equations, not estimated.

Research and Innovative Technology Administration (RITA) • U.S. Department of Transportation (US DOT)
1200 New Jersey Avenue, SE • Washington, DC 20590 • 800-853-1351 • E-mail RITA

Accessibility | Disclaimer | Fast Lane | FedStats | Freedom of Information Act | No FEAR Act | OIG Hotline | Privacy Policy | RSS | USA.gov | White House | Wireless

Plug-ins: PDF Reader | Flash Player | Excel Viewer | PowerPoint Viewer | Word Viewer | WinZip

RITA's privacy policies and procedures do not necessarily apply to external web sites. We suggest contacting these sites directly for information on their data collection and distribution policies.