Uploaded on 2015-04-21 by BeatrizPalv

[1]: https://edxuploads.s3.amazonaws.com/14296144544489203.jpg Photo taken by me on June 18th 2014 in Madrid, Spain. **Visible information**: Majestic public building called Palacio de Cibeles (Cibeles Palace). Nowadays, it’s the headquarters for the capital city town hall. Hanging down from its main façade, two huge national flags. Several more surround the roundabout where a sculpture dedicated to Cibeles Goddess is erected. It is a fountain too, as those two high stream of water framing one of the flags show. Heavy traffic zone, with several lanes for cars, motorbikes and public buses. A colourful flower bed comes between the traffic in the roundabout and the lane closer to the place of the photo shooting; some grass turns up shyly next to the flowers. Neither pedestrian nor zebra crossing can be seen. Small human shapes appear almost on top of the building, just above the big flag on the right side, provably enjoying the views of this part of the city during the sunset. The weather is warm (one of the bikers is wearing a t-shirt) and mild wind (flags are hardly waving). **Invisible information**: - As the clock on top of the central tower points out, it is 8:05 and according to the day light, it is in the evening, which predictably explains the density of vehicles. What we can’t see is that the roundabout is a crossroad in fact, and thus it gathers all the traffic of one of the main accesses to downtown. In addition, that Wednesday was the previous day to a local bank holiday and when that happens, mobility by road becomes heavier since many people take the chance to run away from the city. - The big flags attract attention due to their size and position, covering part of the façade and even some windows. Even if you have never been to Madrid, it can be inferred that this is due to a special event hold in the city in the short term. And eventually it was because the day after Felipe VI was crowned as the new king of Spain. If something ‘big’ is going to happen in the city, many invisible works of security, coordination, cleaning, etc. must be managed at that time in order to have everything ready for the next day. **Knowledge aimed to the planning of a more liveable urban space**: When something extraordinary takes place in the city (even in the case that it was previously planned like a national celebration, an international meeting or a vast demonstration, to mention some), the rest of the urban space and the area affected suffers an eventual transformation in terms of flows and fluency of population, security, transportation, health assistance and others. Data gathered from previous situations help to improve not only the next planned one but the ones that can occur unexpectedly (natural phenomena, accidents, breakdowns). Undoubtedly, analysing people’s behaviour before, during and after the event. And moreover, maybe looking for a real feedback of social, economic and environmental impacts.