The percentage of smartphone owners who in the past year, have done any of the following activities on their smartphone or mobile device after seeing billboards, outdoor video screens, posters, signage, and other outdoor ads:
- Used online search to look up information about the advertiser
- Accessed a coupon or discount code
- Visited an advertiser’s website
- Took a photo of an ad
- Downloaded or used an app shown in the ad
- Interacted with an ad such as sending a message, uploading a photo, or voting