Table 9
Weekday Regional Trips per Household by Purpose and Mode
San Francisco Bay Area: 1965, 1981 & 1990 Household Travel Surveys

Mode Year Home-Based Non-
Home-Based		 Total
Work Shop/
Other		 Social/
Recreation		 School
In-vehicle person
1965 1.518 2.307 0.915 0.295 1.499 6.535
1981 1.558 1.964 1.011 0.387 1.894 6.814
1990 1.701 1.643 0.682 0.393 1.695 6.115
% Diff. 65-90 12% -29% -25% 33% 13% -6%
Transit
1965 0.220 0.085 0.035 0.086 0.060 0.486
1981 0.206 0.085 0.044 0.126 0.097 0.558
1990 0.200 0.077 0.028 0.084 0.091 0.479
% Diff. 65-90 -9% -9% -20% -2% 52% -1%
School Bus
1965 - - - - - - 0.146 - - 0.146
1981 - - - - - - 0.089 - - 0.089
1990 - - - - - - 0.075 - - 0.075
% Diff. 65-90 - - - - - - -49% - - -49%
Walk
1965 0.090 0.286 0.177 0.514 0.281 1.348
1981 0.076 0.188 0.143 0.285 0.303 0.995
1990 0.061 0.151 0.089 0.160 0.287 0.748
% Diff. 65-90 -32% -47% -50% -69% 2% -45%
Other
1965 0.031 0.053 0.057 0.057 0.065 0.263
1981 0.050 0.037 0.063 0.065 0.042 0.257
1990 0.029 0.020 0.029 0.032 0.027 0.137
% Diff. 65-90 -6% -62% -49% -44% -58% -48%
Total
1965 1.858 2.732 1.184 1.097 1.906 8.777
1981 1.890 2.274 1.262 0.952 2.335 8.713
1990 1.991 1.891 0.827 0.744 2.100 7.553
% Diff. 65-90 7% -31% -30% -32% 10% -14%