Table 7
Total Travel Time Expenditures per Household and per Person
by Auto Ownership Level and by Household Size
San Francisco Bay Area: 1965, 1981 & 1990 Household Travel Surveys

Auto Ownership Level

Auto Ownership Level Avg. Total Travel Time/
Household/ Weekday (Hours)		 Avg. Total Travel Time/
Person/ Weekday (Hours)
1965 1981 1990 Percent Change
1965-1990		 1965 1981 1990 Percent Change
1965-1990
0 1.71 1.95 1.79 4.7% 0.86 1.10 0.98 14.0%
1 2.32 2.04 1.96 -15.5% 0.80 1.05 1.02 27.5%
2 3.21 3.15 2.90 -9.7% 0.88 1.06 1.01 14.8%
3+ 3.93 4.13 3.81 -3.1% 0.95 1.09 1.07 12.6%
Total 2.71 2.83 2.68 -1.1% 0.86 1.07 1.03 19.8%
1+ 2.84 2.93 2.78 -2.1% 0.86 1.07 1.03 19.8%

Household Size

Household Size Avg. Total Travel Time/
Household/ Weekday (Hours)		 Avg. Total Travel Time/
Person/ Weekday (Hours)
1965 1981 1990 Percent Change
1965-1990		 1965 1981 1990 Percent Change
1965-1990
1 1.25 1.34 1.30 4.0% 1.25 1.34 1.30 4.0%
2 2.13 2.33 2.30 8.0% 1.06 1.13 1.15 8.0%
3 2.63 3.09 3.06 16.3% 0.88 1.00 1.02 16.3%
4 3.23 4.24 3.79 17.3% 0.81 1.03 0.95 17.3%
5+ 4.17 5.76 5.06 21.3% 0.72 0.99 0.86 19.4%
Total 2.71 2.83 2.68 -1.1% 0.86 1.07 1.03 19.8%