TY  - JOUR
PY  - 1994//
TI  - Changes in regional travel characteristics and travel time expenditures in San Francisco bay area: 1960-1990
JO  - Transportation research record
A1  - Purvis, Charles L.
SP  - 99
EP  - 110
VL  - 1466
IS  - 
N2  - An update of a 1984 study by Kollo and Purvis is presented. <br><br>RESULTS from the 1990 household travel survey conducted in the San Francisco Bay Area are compared with results from surveys conducted in 1965 and 1981 and decennial census data. The study shows a decline in trip frequency per household and per person between 1981 and 1990, which is offset by an increase in average trip duration, yielding an apparent constant travel time expenditure per person and per household. Regularities in average travel time expended per household vehicle are also analyzed. Changes in Bay Area demographic characteristics from 1960 to 1990 are described to provide context to the changes in aggregate travel characteristics. Changes in household trip rates by trip purpose and travel mode are also summarized. <br><br>FINDINGS show a decline in home-based non-work-related and non-home-based trip rates per household and increases in home-based work-related trips per household.    Record URL:   http://onlinepubs.trb.org/Onlinepubs/trr/1994/1466/1466-013.pdf<p /> <p>Language: en</p>
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/
ID  - ref1
ER  -