Nielsen Outdoor's survey of Chicago measured audience exposure to approximately
12,600 outdoor advertising panels of various formats in the Greater Chicago area,
with survey respondents passing 96 per cent of the outdoor advertising sites in
this market. Outdoor ad sites and formats included approximately 3,000 8-sheets
(5'x11'), 3,600 30-sheets (12'x24'), 3,300 bus/transit shelters and 2,700 bulletins
(ranging from 12'x45' to 20'x60').
To measure consumer exposure, Nielsen Outdoor
recruited 850 randomly-selected respondents in 2004 to carry small, pager-sized
GPS devices called Nielsen Personal Outdoor Devices (Npods) for nine days to track
their movements throughout the Chicago market. These data were then converted
into measures of exposure to outdoor advertising messages based on proximity and
direction of travel with respect to the outdoor panels.
Nielsen Outdoor
uses Global Positioning System (GPS) technology to track the travel patterns of
consumers in relation to known outdoor sites, thus determining their opportunity
to see such displays. The system relies on 24 satellites, each in orbit 11,000
nautical miles above the Earth, to track the position of people or objects to
within a few feet. The Npods carried by carefully selected panelists then detect
GPS signals from the satellites and enable Nielsen to pinpoint each Npod's exact
location on the Earth.
The Npod devices, about the size of a cell phone,
that people carry in their pockets, purses, briefcases or wear like a pager. As
these individuals drive cars, walk, jog, ride bicycles or other-wise move about,
they are linked to orbiting satellites that enable Nielsen to identify their location,
speed and direction of travel - passively, continuously, easily and affordably.
Travel information is then mapped to locations of known outdoor displays, to determine
each person's opportunity to see an ad
The topline results of the Chicago
survey show that outdoor advertising has an unparalleled ability to deliver a
frequent message, time and time again. Demographic results are not defined by
the geographic location of the outdoor advertising sites, but from travel exposure
from commuting areas.
Other highlights of the results show that:
- Exposure to outdoor advertising peaks during the morning commute at 8:00
a.m. and again during the evening commute at 5:00 p.m.
- Men age 35
to 54 led all age and gender groups with an average of 54 exposures to outdoor
advertising per day.
- Among women, 18 to 34 year olds led all other
female age groups with 39 exposures per day.
The introduction of Nielsen
Outdoor's electronic ratings system is the successful result of extensive collaboration
with key representatives of the outdoor advertising industry including advertisers,
ad agencies and media owners.