This study was supported by funding from British Columbia Transit. The authors acknowledge Linda Steg for her help in developing the questionnaire.
Extending the Theory of Planned Behavior: Predicting the Use of Public Transportation1
Article first published online: 31 JUL 2006
Journal of Applied Social Psychology
Volume 32, Issue 10, pages 2154–2189, October 2002
How to Cite
Heath, Y. and Gifford, R. (2002), Extending the Theory of Planned Behavior: Predicting the Use of Public Transportation. Journal of Applied Social Psychology, 32: 2154–2189. doi: 10.1111/j.1559-1816.2002.tb02068.x
- Issue published online: 31 JUL 2006
- Article first published online: 31 JUL 2006
An expanded version of the theory of planned behavior (TPB) was used to predict and explain public transportation use. A pre-post design was used to examine changes in university students’ bus ridership after the implementation of a universal bus pass (U-pass) program. Bus ridership significantly increased after the U-pass was implemented, and associated changes in attitudes and beliefs about transportation modes were found. In both phases, students’ public transportation use was well predicted by the original TPB. However, 2 additional constructs—a descriptive norm, and the interaction between intention and perceived behavioral control—significantly improved prediction in both phases of the study. These constructs might be useful additions to the original TPB, at least in this behavioral domain.