Which type of survey asks residents to report changes in their driving behavior due to a media campaign?

• A. Revealed preference
• B. Stated preference
• C. Experimental survey
• D. Perceived impact survey

Answer: (B)

This question focuses on how data about behavior is collected in surveys. When people report how their driving behavior has changed because of a media campaign, you’re getting their own account of what they did or would do—their own stated choices or intentions. That is the essence of a stated preference survey: it relies on self-reported behavior or intentions in response to an intervention, rather than measuring actual behavior directly from records.

If you were measuring actual changes from observed data—like tracking trips or driving mileage before and after the campaign—that would be revealed preference. An experimental survey would involve some form of randomization or manipulation to isolate effects, and a perceived impact survey would focus on how strong or noticeable people think the impact is, not specifically on their reported behavior changes.

So, the scenario best matches a stated preference survey because it gathers residents’ own reports of behavior changes linked to the campaign.