Abstract
Prospective carpool satisfaction varies with respect to carpool size, acquaintanceship and gender composition, at least for carpool arrangements of 2–4 members. It is not known whether such variations apply in the same kind or to the same degree for vanpools of 9–15 members. A study of 15 vanpool programs in Southern California operating over 700 vanpools with more than 8,000 members was used to test for such effects. Five measures of retrospective vanpool satisfaction were derived from 40 vanpool benefit items using factor analysis in LISREL. The five perceived vanpool satisfaction factors included reliability, social, relaxation, economic and environmental benefits. Variations in these five benefit factors were analyzed with respect to vanpool group composition using difference of means tests and correlation analysis. Perceived vanpool reliability showed the largest statistical association with most of the group composition variables studied, perhaps because it was better identified in the analysis in terms of the total number of individual items loading on it. Gender had the largest statistical association with most of the vanpool benefit factors, perhaps because it was most clearly identified with individual vanpool members in the data. Based on this analysis, it appears that perceived vanpool benefits are qualitatively as well as quantitatively different than perceived carpool benefits. Vanpool program marketing strategies may need to be rethought and recast based on these research findings.
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Ferguson, E., Hodge, K. & Berkovsky, K. Psychological benefits from vanpooling and group composition. Transportation 21, 47–69 (1994). https://doi.org/10.1007/BF01119634
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DOI: https://doi.org/10.1007/BF01119634