Clicks and promo codes miss most of what rideshare advertising drives because people don’t click a car. They see a branded vehicle, then search for the brand later, type in the URL, open the app or walk into a store, and none of that carries a code or a tracked link. To measure rideshare advertising properly, compare what exposed people did against a similar unexposed group: web lift for site visits, footfall studies for store visits, and visitation attribution for destination arrivals.
Performance marketers are used to channels where every result has a click attached. Out-of-home media works differently. It builds awareness and intent that show up later, often in another channel. If you judge it by clicks and redemptions alone, you’ll undercount it and may cut a campaign that’s working.
Why Clicks and Promo Codes Undercount Offline Media
- The response happens somewhere else. Someone who sees your vehicle on the way to work might search your brand that evening. Search or direct traffic gets the credit, not the vehicle.
- Few people act on a code. A promo code asks people to remember a word they saw in traffic and type it in days later. Most won’t, even if the ad changed their behavior.
- Codes leak. Codes get shared on coupon sites and group chats, so some redemptions come from people who never saw the campaign.
- Last-click models favor the final step. Attribution tools built for digital give credit to the last tracked touch, which is rarely a physical ad.
The result: a campaign can lift visits and sales while its promo code shows only a handful of uses.
4 Measurement Mistakes to Avoid
- Judging the campaign by code redemptions. Treat redemptions as a minimum, not the total.
- Reading results without a control group. Sales rise and fall for many reasons. Without an unexposed comparison group, you can’t separate campaign impact from seasonality.
- Measuring too soon. Repeat exposure builds over weeks. Judge results across the full flight and the time after it.
- Stopping at impressions. Impressions prove delivery, not outcomes. Pair them with at least one outcome study.
For the full ROI process, including GPS delivery data and ROI calculation, see how to measure rideshare advertising ROI with GPS tracking.
What to Measure Instead
| Your goal | What to measure | How it works |
|---|---|---|
| More website visits | Web lift | Compares site visits from people exposed to the vehicles with a similar unexposed group |
| More store visits | Footfall study | Compares store visit rates between exposed and control audiences |
| More visitors to a destination | Visitation attribution | Counts exposed people in a feeder market who later arrive at the destination |
| More app installs | App install attribution | Connects exposure to later installs |
| Reaching the same people online | Digital retargeting | Serves digital ads to devices that were near the vehicles |
Each of these measures what people did after seeing the campaign, whether or not they clicked or used a code.
What Lift Studies Have Shown
- Website visits: In New York, people who saw Bermuda Tourism Authority’s branded vehicles were 1.5x more likely to visit VisitBermuda.com than an unexposed control group, a 51% lift at 98% confidence. Read the Bermuda case study.
- Store visits: In an Albertsons footfall study across 142 stores, exposed audiences were 13.16x more likely to visit than the control group. Read the Albertsons case study.
- Gym visits: For a Planet Fitness franchisee, people exposed to 50 branded vehicles were 1.67x more likely to visit, a 67% lift at 99% confidence. Read the Planet Fitness case study.
- Destination arrivals: Visit Fort Worth’s Kansas City campaign produced 2,680+ verified visitors to Fort Worth and $800,000+ in estimated economic impact. Read the Visit Fort Worth case study.
None of these results depended on someone clicking an ad or typing a code.
Where Promo Codes and QR Codes Still Fit
Codes aren’t useless. They’re one signal among several. If you use one:
- Make it short and easy to remember, or use a simple vanity URL.
- Use a code unique to the campaign so you can separate it from other channels.
- Read redemptions alongside a lift study, not instead of one.
How to Set Up Measurement Before Launch
- Pick one primary outcome: site visits, store visits, arrivals or installs.
- Choose the matching study from the table above.
- Agree on the control group, study window and confidence reporting with your provider.
- Share what you’ll need from your side, such as store locations or site tracking.
- Decide how results will reach your reporting, including how retargeting audiences flow into your ad platform.
How Carvertise Measures Rideshare Advertising
Signal IQ is Carvertise’s measurement and reporting platform. Within a 15-foot viewshed of each branded vehicle, it captures opt-in, hashed and anonymized mobile device IDs and passes them to your DSP so you can reach the exposed audience again online. Depending on campaign goals, attribution studies measure website visits, store traffic, app installs and destination visitation. Monthly reports cover impressions, unique impressions, reach, frequency and audience demographics, and a dedicated Client Success Manager walks you through the results.
Frequently Asked Questions
How do you measure rideshare advertising?
Combine delivery metrics, such as impressions, mileage and GPS routes, with an outcome study that compares exposed people against an unexposed control group. Common outcome studies are web lift for site visits, footfall studies for store visits and visitation attribution for destination arrivals.
Why don’t promo codes work well for out-of-home advertising?
Promo codes rely on people remembering and typing a code they saw in passing, so most people influenced by the ad never use it. Codes also get shared beyond the campaign audience. Redemptions show a minimum, not the full impact.
What is OOH attribution?
OOH attribution connects exposure to an out-of-home ad with what people did afterward, such as visiting a website, a store or a destination. It usually relies on mobile location data and a control group to estimate the lift the campaign caused.
What is a web lift study?
A web lift study compares website visits from people who were near a campaign with visits from a similar group who weren’t. In a Carvertise campaign for Bermuda Tourism Authority, exposed people were 1.5x more likely to visit VisitBermuda.com, a 51% lift at 98% confidence.
Can rideshare advertising be retargeted online?
Yes. Carvertise Signal IQ captures opt-in, anonymized mobile device IDs near branded vehicles and passes them to your DSP, so you can serve digital ads to people who saw the vehicles on the road.
Measure What Your Campaign Actually Drives
Tell us your markets and the outcome you need to prove, and we’ll build the campaign and the measurement plan together. Plan a campaign or request pricing.