Data visualization

How Cities are Governed

Design and development of an online platform for the first global Urban Governance Survey initiated by LSE Cities in partnership with UN-Habitat and UCLG.

The survey results are displayed in an interactive visualization where each colored dot represents a city. It’s possible to scroll through the survey questions while the dots group together according to the given answers. This allows the user to see the total survey answers while at the same time it's possible to identify individual results of a city.

The dots can be colored according to world region, population and city wealth. When selecting a city, additional information is displayed and it's possible to highlight multiple cities while viewing the results.

A second interactive visualisation ‘Exploring the data' allows the user to compare part of the results.

URL: Survey results, Exploring the data Year: 2015 Activities: Data visualization and website development Working together with: Alex Starr (website design)
in > NL > out : Migration in the Netherlands

This interactive chart shows migration in the Netherlands between 1995 and 2013 based on the migrants' country of birth. It's divided in two parts: the positive vertical axis shows immigration while the negative axis shows emigration. Each coloured layer represents a different country of birth, the layers are ordered alphabetically.

When moving with the mouse on these layers, more information about the migration from the chosen country becomes visible.

It's easy to see that each year, apart from immigration, there's a substantial number of emigrants. Some of these emigrants are probably people that are going back to their own country but there's also a big amount of Dutch people settling abroad. Between 2003 and 2007 net migration has been negative, this means there were more emigrants than immigrants.

The data used in this visualisation is from CBS Statistics Netherlands

URL: Year: 2015 Activities: concept, design and development
European Regional Competitiveness Scoreboard
This web-based tool consist of 4 interactive visualizations showing different aspects of European regional competitiveness. The visualizations allow policy makers to view and analyse the economic position of regions related to different sectors during three periods. More information is available at
URL:, Year: 2014 Client: PBL - Netherlands Environmental Assessment Agency, European Commission - Joint Research Centre, The Netherlands/Spain Activities: Design and development
How healthy is the web?
The Web index is a measure of the Web's growth, utility and impact around the world. It has been designed and produced by the World Wide Web Foundation. "How healthy is the web?" is an interactive visualization which allows exploring the different components of the web index in the different countries. Each country is represented by an icon divided into four squares, each of which gives a measure to the following subindexes: - Universal Access - Relevant Content - Freedom and Openness - Impact and Empowerment
URL: Year: 2014 Activities: concept, design and development

Meteorites are meteoroids originating in outer space which survive impact with the Earth. From a total of more than 45700 recorded meteorite landings, only around 3800 have a mass larger than 1kg.

“Macrometeorites” is an interactive visualization of these meteorites. Through the interface it's possible to explore the meteorites according to the position were they fell, the year they were found and the kind of meteorite.

It’s based on a data set provided by “The Meteorolitical Society”.

URL: Year: 2013 Activities: concept, design and development
Industries that drive America's metros

An interactive visualization showing the driver industries for the 100 most populous metros in the U.S. based on 2013 jobs, regional concentration, average earnings, and/or job growth.

The user can select the different industries and view the cities on the map for which the selected industry plays an important role and gather additional information.

URL: Year: 2013 Client: EMSI, CareerBuilder, U.S. Activities: concept, design and development Working together with:

Needle Analytics,

Remittance Flows

Following a previous project "Migrant Moving Money", this interactive visualization shows remittance flows between countries.

The countries are placed around the circle according to the continent/region they belong to and can be senders or receptors of money (Remittances sent/Remittances received). When clicking on a country the remittance flows related to that country are shown.

Based on the World Bank's dataset: "Bilateral remittance estimates using migrant stocks, destination country incomes, and source country incomes"

URL: Year: 2012 Activities: concept, design and development
Poverty and middle class chart

An interactive chart specially created to be part of the article "Defining the middle class" ("Putting inequality on the map").

The chart shows the evolution of the Middle class and poverty from 1990 up to 2008 in the different developing regions of the world.

Based on data extracted from the World Bank’s POVCAL tool.

URL: Year: 2012 to 2013 Client: The Broker, The Netherlands Client url: Activities: concept, design and development
Groundwater in movement

Almost all over the world groundwater in aquifers is being drained faster than the natural recharge.

"Groundwater in movement" is a submission for HeadsUP! Times Square Visualization Challenge consisting in creating a motion graphic on the TS2 signs in NYC's Times Square. The motion graphic should alert people to current groundwater trends.

The approach of the submission is based on giving an overview of the global situation and trends while playing special attention to the local situation in critical areas.

This was achieved by presenting a global water mass change visualization in one of the signs and switching between different critical areas on the other signs, focussing in this way on the different reasons for groundwater depletion.

URL: Year: 2011 Activities: concept, design and development Working together with:

Enrique Krahe

Personal World Map

"Personal World Map" has been developed with the idea of giving users another perception of the world. Normally we measure distances between places in km (or miles) but in the Personal World Map these distances have been replaced by travel time and travel costs. These two factors can give a better indication of relative position between places than geographical distances.

More information about the Personal World Map can be found in the about section of the project.

The Personal World Map has been my final project for the study Media Design at the Piet Zwart Institute in Rotterdam.

URL: Year: 2004 to 2005 Activities: concept, design and development
How "liveable" are cities?

This visualization gives an overview on "city liveability" according to different criteria. A first screen shows city liveability according to the EIU (Economist Intelligence Unit) liveability index, while in a second screen an alternative index is presented

This project is a submission for the Best City Contest 2012. Based on the existing EIU (Economist Intelligence Unit) liveability index, the question was to create a new index adding other relevant factors and to create a visualization.

URL: Year: 2012 Activities: concept, design and development

Design of an interactive visualization on STIs (sexually transmitted infections) for Telus Spark, the new Science Centre in Calgary Canada, commissioned by EDM Studio.

The visualization is accessible through a touchscreen where visitors can explore the number of STIs cases in Canada and Alberta through the years and the distribution by age and gender.

Year: 2011 Client: EDM Studio, Canada Activities: Concept and (initial) design
Highway Traject visualization

Thinking about travel time as a more effective indication of distance, the highway traject visualization show the effects of highway congestion on travel time.

This animation shows highway trajects from Utrecht (centre of the map) to other main cities in The Netherlands. The distances have been replaced by travel times for each traject. Starting on monday at 0:00 and finishing on friday 23:50, the animation shows how travel times are affected by congestions along the work week specially at certain times of the day. During rush hours the graphic expands in different directions and at night the graphic returns to the original form.

The data used have been provided by the client and consist of average travel times during 2005.

URL: Year: 2006 Client: Ministry of Transport, Public Works and Water Management , The Netherlands Activities: concept, design and development
New Towns Database

The New Towns Database is an initiative of the "International New Town Institute" to concentrate all information regarding "new towns". It is a growing database which includes information about the foundation and development of the towns as well as maps and images.
The towns are visualized on a world map, through an interactive animation it is possible to see the year in which the towns were founded. This map serves as interface to the new towns database.

URL: Year: 2006 to 2007 Client: International New Town Institute, The Netherlands Client url: Activities: database and interface design and development, development of an interface for updating the database Working together with:

Jos Agasi (design first version)