An Exhibitor Asks for Proof of Booth Traffic: What Six Sources Support and What None of Them Tested

Before renewing, an exhibitor asks the association for proof of booth traffic, and the manager who sells the exhibit hall holds a floor plan, a registration list and perhaps data from badge scans, an app or venue Wi-Fi. We read six documents on how visitors move through exhibits and on what tracking their phones involves, and none of them describes an association’s exhibit hall, and none tested a traffic report handed to an exhibitor. The evidence on what movement data is worth to an exhibitor is weak, and the evidence on what collecting it requires is mixed.

Three questions inside one request

A 1995 article in Marketing Science, by two researchers at the Pennsylvania State University business school, is the only one of the six framed around an exhibiting firm’s results. We read its abstract only. It describes a model of trade show performance in three stages, measured as attraction, contact and conversion efficiency. It says the model weighs preshow promotion, booth space, attention-getting techniques, competition and the number and training of booth salespeople, and that data from 85 firms at one major 1991 trade show suggest these had significant and different effects. Booth location is not on that list.

In our reading, a count of people passing a booth would at most speak to attraction, the first stage. Whether a visitor made contact, and whether contact became business, happens at the booth, where the exhibitor’s own staff can keep a record.

What an older study of exhibits does and does not carry over

A 2004 article in Environment and Planning B, by four authors at the Georgia Institute of Technology, the University of Michigan and a Georgia regional transportation authority, analysed traveling science exhibitions, which are not trade shows. Its abstract, the only part we read, argues that refined spatial analysis can identify how layout affects visitors’ paths and behavior, even in moderately sized open plans where movement is nearly random. It reports that contact with an exhibit was associated with its accessibility relative to the others, and active engagement with cross-visibility between exhibits.

Neither abstract describes an association’s exhibit hall. Whether a booth’s position changes its traffic or its business is a question none of the six documents tested.

What tracking a visitor’s phone brings with it

A Federal Trade Commission page for a staff seminar held on 19 February 2014 describes businesses following consumers’ movements in and around stores and other attractions through signals from their mobile devices. It says such tracking can reveal the path taken, the time spent in one place, whether a visitor is new or returning and how often visits happen. It adds that in most cases the tracking is invisible to consumers and raises potential privacy concerns. The page is an event listing about retail settings, not a rule or guidance.

The Dutch Data Protection Authority, a government agency, says on a page last edited on 23 May 2025 that Wi-Fi and Bluetooth tracking allow personal data to be processed, which brings in the General Data Protection Regulation. It calls consent practically and technically difficult to implement and says reading identifiers or location data from a person’s device is allowed only with explicit consent. Among the measures it gives as examples for companies weighing legitimate interest are anonymising data on the sensor at once, hashing differently at each measuring location, limiting measurement to set times and places and offering a clearly signposted opt-out. This is Dutch and European guidance, cited as one regulator’s reading and not as a rule for events in the United States.

Indiana University’s human research protection program published guidance, last updated on 19 January 2021, telling researchers using mobile devices to say plainly what data a device will collect, GPS location included, and, for installed apps, to plan for collection to stop when a study ends. It adds that such studies are particularly likely to capture information about people who are not the intended and consenting subjects, and that researchers should take steps to limit what they gather. That is research-ethics guidance for studies under university review, so applying it to an exhibit hall is an analogy.

Only one of the four asked people how they feel about being tracked, and it did so with hypothetical scenarios. A 2021 article in PLOS ONE, by five University of Melbourne authors, reports a questionnaire in which 287 members of that campus community rated hypothetical Wi-Fi tracking scenarios. The mean acceptance across its 11 scenarios was 71.5 percent. The authors report that trust and individual benefit were among the most predictive factors, that perceived public benefit and perceived private or commercial benefit did not show strong evidence of raising acceptability while personal benefit did, and that perceived ongoing control over one’s data predicted acceptance better than the difficulty of declining at the start. They caution against extending the findings far beyond the university. In our reading, the beneficiary matters, since a booth-traffic report mainly benefits the exhibitor and the association, but the study did not test that.

What to hand over and what to leave uncollected

These suggestions are our reading of the sources above and have not been tested at an association. Answer the request in the exhibitor’s own stages: offer the counts the association already keeps, and invite the exhibitor to log contacts and follow-ups at its own booth. Counting at a doorway is covered in the Wi-Fi sensing tutorial.

Decide before the show whether any device signal needs to be collected at all. The FTC page lists what such tracking can reveal about a person, and a hall-wide count needs none of it. If device data is collected, write down what is recorded, whether it can single out one device, how long it is kept, who sees it and how an attendee says no. The Dutch measures and the Indiana point about people who never agreed to be studied are reasons to keep the data coarse in space and time, and the Melbourne finding on ongoing control suggests offering removal after the event, not only a box at registration. Say in the report what it cannot show: nothing here supports a claim that a booth’s position drove its traffic, or that traffic turns into business.

A renewal note, written this way

This is a teaching example, not a case study. A trade association’s exhibits manager receives a renewal email from a returning exhibitor who wants proof of traffic. The reply has three parts. The first gives hall-wide totals and how they were counted, with nothing recorded by visitor. The second names what was not collected, such as device signals or individual paths, and says the association has no basis to credit the booth’s position for its traffic. The third invites the exhibitor to keep its own contact log next year, so the two records can be compared afterward.

What stays open

No source we read tested whether a traffic report persuades an exhibitor to renew, how accurate a location count is on an exhibit floor, or what exhibitors accept as fair proof. The article covers no United States law, and nothing in it is legal advice; counsel should review any plan that collects location signals. Five of the six documents are at least five years old.