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.
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Estimating the Influence of Public transport on Road traffic Levels in Greater London
- D. Lewis
- May 1977
- Vol. 11
- No. 2
- Page 155
Estimating the Influence of Public transport on Road traffic Levels in Greater London
- D. Lewis
- May 1977
- Vol. 11
- No. 2
- Page 155
Road traffic is found to be sensitive to petrol price increases. Service is twice as important as fares in determining transfer from bus to car. Increases in petrol prices do not offset extra peak period traffic, as petrol savings are made largely in off-peak times.
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