D-tower is an art piece, commissioned by the city of Doetinchem in
the Netherlands, that maps the emotions of the inhabitants of Doetinchem.
D-tower records HAPPINESS, LOVE, FEAR and HATE daily using different
D-tower consists of:
1. a tower, 12 metres tall, in the centre of Doetinchem
2. a website
3. a questionnaire
The D-tower project is conceived by artist Q.S. Serafijn and architect
Lars Spuybroek / NOX-Architekten.
D-tower collects its information on a statistical basis. D-tower uses
a questionnaire to record emotions. This questionnaire contains 360
questions. Every other day, four new questions are made available
to the inhabitants of Doetinchem. An example: 'Are you happy with
your partner?' Possible answers: 'very much' - 'yes' - 'a little'
- 'no' - 'absolutely not' - 'not applicable'. Each answer has a score.
The answers are collected by D-tower, the scores calculated and translated
into hand-drawn graphical representations. These graphs are presented
on the website. Because the zipcodes of the participants are known
to D-tower, the emotions of the participants can be placed on the
map of Doetinchem. This allows visitors to see what street houses
the happiest people in Doetinchem, where people are scared, and where
A select group of inhabitants, that have subscribed voluntarily, answer
the questions. After subscribing, the participants receive a password
for personal access to the questionnaire. This method ensures that
the emotional condition of the city cannot be influenced by people
not living in Doetinchem. The participants are from different parts
(zipcode regions) of the city.
In D-tower, every emotion has its own symbolic colour: red for LOVE,
blue for HAPPINESS, yellow for FEAR and green for HATE. Every day,
D-tower calculates the most prominent emotion, based on the answers
received by the participants. Every night, the tower in the centre
of Doetinchem lights up in one of these colours. If there was a lot
of HAPPINESS in the city on day 1, the tower will turn blue. If a
lot of LOVE was in the air on day 2, the tower will glow up red...
Each survey lasts six months. Because D-tower presents four new questions
every other day, a full round of questions and answers is completed
after six months. After these months, the survey restarts with new
participants and a six month duration. The results are archived per
day and month, and can be viewed on the website.
Besides the survey, D-tower offers functionality for communication
and exchange. Visitors and participants can publish a letter on on
http://www.d-toren.nl, or exchange thoughts with others on various
subjects. These 'dialogues' are placed on the website.