Realism and Adaptation in Designing Hypothetical travel Choice Concepts
For external validity, SP experiments need to present choices that are realistic for the respondents. The use of portable computers in interviewing has many advantages.
For external validity, SP experiments need to present choices that are realistic for the respondents. The use of portable computers in interviewing has many advantages.
This article examines methods of predicting numbers of trips made by car and by public transport, and shows how closely the model is influenced by the size and composition of the household and by its income.
The paper argues for a public Road Authority owning the highway infrastructure and holding debt. Present provisions for private roads lead to large distortions, and are unlikely to encourage private investment.