City without waste

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How understand different behaviors?

After a lot of frontal interview, we decide to use also a SURVEY to ask at the people more questions and understand better the different behaviors.

We use different types of question to have different types of answers from different types of people.

If you want try use this link:

Thank’s to these surveys we also define 8 different PERSONAS: different types of users of the waste service.


dutch female dutch male elderly female elderly male family high income woman male student middle east immigrant middle eastern immigrant non western immigrant female non western immigrant male student female western female western male

The behaviors of each different personas are all different and they depends from different categories like ATTITUDE, SUBJECT NORMS, PERCEIVED CONTROL, KNOWLEDGE, PAST BEHAVIORS.

After that we decide to show all our research with two different games.

We design a game called WHO AM I? to play with the different personas to understand better the different behaviors. This game is digital and you can play online with that.



Another game that we designed it’s TOP BEHAVIORS. This is a game with cards and it’s important to play with the real data about our survey. After this game you can also find other INSIGHTS.

IMG_7757                                 IMG_7758

After results found we can find new solutions for our work.

At the end of our work we show all in a meeting with the Municipality.

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The People

In this second meeting, after one month from the first one, we presented our research about the different users to Tim, our partner from the municipality.

During this period, we did a lot of interviews to very different people that live in Amsterdam and use the service. chart

The¬†“Confession Bin” was the¬†“interview room”, so the people, after one first interview, went inside to answer other question, more abstract and personal about the relationship the they had with their old furnitures, to look and think at the object more like a person.



Interviews in the “Confession Bin”

After the ideation¬†and the realization of our “Confession Bin”, we’re ready to start with the interview. We’ve tried setting up our booth on several locations, in the end we chose the place with more people, a park.

We gave people a tablet with a questionnaire app we made ourselves. They had to answer the questions secretly in privacy inside the confession bin.  The questions asked about the relationship with your bulky waste. Some of questions were multiple choice, and some allowed people to record themselves to actually speak up. Most questions were open-questions with an input field. With this app, we tried to gather as much data as we could.

We attempted to get people from different ethnic groups to use the app.  Women, men, young and old people, even students. We could use this to have more data, about different users, to check and analyze.

Another part of our interview was more interactive, we used another method to do this:  face to face interviews.




Now it’s time to¬†analyze all the interviews!! Afterwards we’ll know more about citizens of ¬†Amsterdam.

Maker Sprint

confession bin

The Maker Sprint started with a deadline already!! In two days we had to formulate and define the PROBLEMS and make a prototype.

As Loes, our coach for this Maker Sprint said “The problem is to find the right problem”

So… What is the real problem? The citizens and the other users of the city don’t have a common education that shows respect for the city and its environment, but also the municipality is not the great example of communication. There is a wide sector of the population that can’t access the waste collection points, and the urban planning of the city doesn’t contemplate the integration of them in the current organisation.

So after 7h of nonstop talking, researching, arguing and agreeing, we ended up with the idea of a prototype… can you guess it?


A confessional is a box, cabinet, or stall in which the priest in Christian churches sits to hear the confessions of penitents.  Change the priest for a bright screen (that enlights you with a very personal questionaire) and change the christian church for a very very dirty street in Amsterdam. That is the Confession Bin.

The confession bin acts in two very important moments of the bulky waste process. Imagine yourself buying new furniture in IKEA, imagine yourself now that before paying anything, you have to enter a nice but misterious black cabin. There, you will face a personal talk that will make you rethink about your waste:

confession bin 3

Imagine now that you are moving out, everything is a big mess, and after spending two or three days carrying your heavy old couch that doesn¬īt mean anything more to you. You¬īve thought about selling it at the Marktplaats but it seems too slow, you¬īve thought of just giving it to a friend but anyone seems to need an old couch. The recycling attempt only lasts for 5 min in your mind; only thinking about trying to go to the waste collection point 5 km away and rent a car seems impossible.

Then, you do it, you put your old in the street. Close to some trash containers, just in case.



On the grey and snowy morning of Wednesday 8th, we met at one of the recycling facilities of the municipality of Amsterdam, in the south of the city.



We met¬†Anita Numan, Nove and Ruben, who are¬†working at the local government of Amsterdam in different fields such as urban¬†planning and sustainability or innovation projects and are going to be our partners during this project. We exchanged the insights that we had been gathering during the first week with the several workshops and we¬†started to have a clearer idea of what is the PROBLEM, at least, from the municipality¬īs perspective.


…And we started to realise that it is going to be one of those wicked problems



The municipality


We discussed about whether the points would actually be able to handle a 100% city usage load. They’re only open from 9-5 on Mon-Saturday, so is only on Saturdays when most of the people are actually available to use the waste points. We also did a bit of brainstorming unconsciously around the idea of gamification, what if you earned points with bringing the trash to the correct waste collection points?


¬†“How do we get people here, and keep them here?” ¬†¬†Ruben

¬†“No city in the world is particularly awesome in this problem. Let‚Äôs make Amsterdam the first then” ¬†Nove

The first week

In our first week, we got to know each other.
We are Leon, Bea, Kazumitsu, Raquel and Max, the next 20 weeks, we’ll be working on finding ways to get people to not just dump their trash on the streets.

On our first day we mostly just talked about ourselves, getting to know each other.

The second day was action right away. We teamed up and worked with little-bits, basically circuitry-lego, and we made a prototype of what could possibly have been the problem. We built the WifI’m full bin. A bin with a sensor that knows when it’s full, and then transmits this information to a network, on which an app would tell citizens what bins nearby are full (so they know not to go there), and also tell the municipality what bins are full, so they know which ones to empty. It could also keep track of all the data, to eventually make predictions about whether or not bins would be full.
Of course, our little prototype couldn’t do all that, it could only tell whether or not it was full.

bin bot


On the third day we started on our user scene. We did all the filming in Osdorp. It was pretty tough to find garbage.IMG_3786


On the fourth day we did all the editing for the user scene, as well as creating a flag for our team. We presented both.IMG_3870


The fifth day, the last day of the first week, we wrote breakup letters to apps we hated, we made baloon-decorations with letters, and made a bridge from small wooden sticks.
After that, we worked a bit on preparations for the following day, in which we’d have a meeting with our partner, the municipality of Amsterdam.IMG_3886

Bin-Bot or… (WiFi) I’m full


With Little Bits and Makey Makey we prototyped our first ideas about the City without waste



“WiFi’m full!”


bin bot