The Embarriados project

José Ariza, researcher at Fundación Cotec, talks about the project 'Embarriados', the new atlas of social vulnerability in Spain, developed together with 300.000 km/s, which seeks to provide new knowledge about the relationship between the city, mobility and urban inequality with the objective of being able to guide public policies and avoid potential risks of social segregation resulting from decarbonization.


Fundación COTEC


How to Develop Smart Cities?

Mar Santamaria, co-founder of 300.000 km/s, participated at the debate on public services organised by Observatorio 2030 CSCAE (Consejo Superior de Colegios de Arquitectos de España) that went live on Capital Radio.

Sustainable, Digital and of Proximity

Pablo Martínez, architect, urban planner and co-founder of 300.000 Km/s, speaks to La Vanguardia on cities and their future.


X-Ray of Noise in Barcelona

Unpublished data on hundreds of thousands of noise records in Barcelona exhibited. The Shhh... project of the Elisava School reveals that 90% of the sound level meters in Barcelona have exceeded the daily average noise levels recommended by the World Organization for Health (WHO).


Data is Key to Build Better Cities

data one can contribute to making better metropolises. However, it is essential that national, departmental and local governments become transparent with information.

Smart Street Lighting. What Are the Challenges?

Like the Smart City, its raison d'être is a more efficient and sustainable city. In urban lighting, it is also relevant to start a reflection on what you want to light up and what not.


7 Maps to Understand the Land-Use Plan in Eixample

Mar Santamaria and Pablo Martínez, founders of 300.000 km/s, talk through 7 maps to understand the land-use plan for Eixample in Barcelona.

The World’s First Digital ‘Encyclopedia’ on Access to Housing

The Affordable Housing Atlas, developed by 300,000 Km/s, allows to analyze city by city how urbanization has expanded over the last 50 years, showing a map of all the planet's metropolises at a resolution of 250 meters. This is possible thanks to the integration of data from the Global Humanitarian Settlement Layer, which details more than 16,000 metropolitan regions in the world. This level of sophistication and its easy usability make it an essential tool for the analysis and study of affordable housing on the planet by governments, institutions and universities.


“Nos falta la cultura de saber disfrutar del espacio libre”

Interview on the participatory process in Montjuïc, Barcelona.

Related projects

Barcelona Takes on Airbnb

“For a long time, tourism was seen as nothing but a positive thing for the city, but now we’re starting to feel all of the impacts,” said Mar Santamaria-Varas, a Barcelona-based architect and co-founder of 300.000 Km/s, an urban planning agency.

Related projects


Engaged with better cities