Cities in transformation.Computational urban planning through big data analytics.

Future scenarios foresee a city as a fragmented and uneven system in relation to rapidly evolving environmental, economic and social phenomena. The traditional urban planning tools, based on a theoretical-predictive appro-ach, adapt poorly. We need to rethink how to govern the transformations of a city, which can be described by models of urban metabolism. City Sensing has changed the way a city is explored and used. With the transition from di-gitisation to datafication, through a computational approach, one can process georeferenced datasets within algorithms in order to achieve a higher quality of the project. This process exploits data provided by public administrations, companies and citizens taking part in inclusive and adaptive urban planning.Keywords: City Sensing; Datafication; Big Data Analytics; Computational Urban Planning; Adaptive and Inclusive Urban Planning

A Moon Base with Active Radiation Shielding

When dealing with human long duration missions beyond low Earth orbit the danger due to radiation must be carefully accounted for. This is even more important when dealing with missions aimed to the constructions of outposts on the Moon and on Mars, aimed to the colonization of these bodies. The possibility of screening the human beings from radiation by building thick wall habitats, possibly using the locally available regolith through additive manufacturing technologies, is very interesting, but has an intrinsic drawback: the buildings must have windows as small as possible, or no windows at all, which a ects the psychological health of the colonists (claustrophobia), to decrease their ability to assess distances when outside the outpost (di culties in performing EVA) and may be particularly bad in case one of the activities of the outpost is tourism. Another problem is the construction of greenhouses, which should allow the light from the Sun to enter for powering the plants' biological mechanisms. A partial solution to this drawback is virtual windows: large screens attached to the walls, showing images coming from cameras located on the outside of the walls. But the image on a screen is two-dimensional and it is still to evaluate how much the above mentioned problems are mitigated by 2-D images. For the greenhouse the solution may be an extensive use of arti cial lighting, mostly using LEDS, but this requires the presence of very powerful electric generators. The proposal of this paper is to study an expandable and modular settlement, made of elements as transparent as possible due to the presence of large windows that allow the view of lunar landscape and celestial vault, as to mitigate psychologically e ects derived from long stay away from planet Earth. To make this solution possible, the settlement needs to be protected from the dangerous cosmic radiation using magnetic elds (active radiation shielding). Arti cial magnetic elds can be generated by a number of high voltage electric cables arranged in a toroidal geometry around the inhabited environment. This cables are able to generate an external magnetic eld of su cient intensity, to protect the habitat from cosmic radiation and, at the same time, an almost null magnetic eld inside the settlements, as to avoid any damage for the inhabitants. In particular, a future moon base can be built within a large size toroid of electric cables

A Modular Lunar Hotel

The aim of this paper is to propose an innovative modular lunar hotel/outpost that can be assembled using the load capacity of future rockets Space X is at present developing and presumably will be opera- tional by 2025. In particular, the design is based on the Space X' Starship, that will have the capability to land large and heavy payloads on the Moon. The lunar building is essentially made of four cylindrical modules assembled around one central distribution and service hub. These four modules, intended for housing, have a geodesic dome with large windows to observe the lunar environment surrounding the outpost. The entry point to the base is in the lower part of the central module, which is the only part of the building touching the ground and rests on four adjustable legs. The central module will be used for vertical connections and services as well as for hydroponic laboratories and greenhouses in which to grow the food the settlers will eat. The whole structure will be about 15m high and will be protected from cosmic radiation by a magnetic eld generated by a number of electric cables laid on a spherical structure made of in atable high pressure tubes. The modules can be made of light material since the protection form radiation is supplied by the magnetic eld, and need only a thermal insulating layer, which can be fairly light. The whole structure can thus be carried from Earth without the need of manufacturing it on site. As an added advantage, large windows can be present, mainly in the a top domes/observatories, which will be the characteristic elements of the installation. The cylindrical modules have a diameter of 6m, suitable to be transported in the cargo hold of the Starship. To reach an height of 15m, they are made in sections and then assembled on site. The modules will be lowered from the hold of the Starship by means of the crane with which each spaceship is equipped. Before starting the assembly of the modules, self-propelled cranes and vehicles will be carried to the Moon so that the construction site of the hotel/outpost can be relatively distant from the landing area. These construction machines will then remain available for other construction projects on the Moon. A total of about 10 launches are expected to be required to carry to the Moon all parts needed to build the facility

Modular Lunar Hotel

The aim of this paper is to propose an innovative modular lunar hotel or outpost that can be assembled using the load capacity of future rockets Space X is at present developing and presumably will be opera- tional by 2025. In particular, the design is based on the Space X Starship, that will have the capability to land large and heavy payloads on the Moon. The lunar building is essentially made of four cylindrical modules assembled around one central distribution and service hub. These four modules, intended for housing, have a geodesic dome with large windows to observe the lunar environment surrounding the outpost. The entry point to the base is in the lower part of the central module, which is the only part of the building touching the ground and rests on four adjustable legs. The central module will be used for vertical connections and services as well as for hydroponic laboratories and greenhouses in which to grow the food the settlers will eat. The whole structure will be about 15m high and will be protected from cosmic radiation by a magnetic eld generated by a number of electric cables laid on a spherical structure made of in a table high pressure tubes. The modules can be made of light materials since the protection from radiation is supplied by the magnetic eld, and need only a thermal insulating layer, which can be fairly light. The whole structure can thus be carried from Earth without the need of manufacturing it on site. As an added advantage, large windows can be present, mainly in the a top domes/observatories, which will be the characteristic elements of the installation. The cylindrical modules have a diameter of 6m, suitable to be transported in the cargo hold of the Starship. To reach an height of 15m, they are made in sections and then assembled on site. The modules will be lowered from the hold of the Starship by means of the crane with which each spaceship is equipped. Before starting the assembly of the modules, self-propelled cranes and vehicles will be carried to the Moon so that the construction site of the hotel/outpost can be relatively distant from the landing area. These construction machines will then remain available for other construction projects on the Moon. A total of about 10 launches are expected to be required to carry to the Moon all parts needed to build the facility

Strategies for a Positive Anthropogenic Impact in Postwar Buildings

A significant portion of postwar buildings, typically concentrated in suburban areas, are now difficult assets to manage due to their poor sustainability and limited replacement feasibilities. This paper focuses on strategies to improve their metabolism using energy-saving measures based on optimizing energy needs and integrating internal and external energy sources: a new organizational model for energy management should focus first on saving energy, and then on the possibility of integration into a local energy network. This positively affects the anthropogenic impact and becomes a role model for aggregating buildings not only into a district system, but also into a wider, large-scale energy network. The paper shows a significant case study of actual retrofitting intervention that is examined in order to confirm the theoretical guidelines proposed in the first part of the paper. Moreover, another significant case study, taken from common practice, is illustrated, in which different levels of retrofitting are tested. While taking into account the complexity and fragmentation of private property both in a single building and in the city, some strategies are finally described with the aim of reducing the anthropic impact of the postwar building stock

Filling in the spaces: compactifying cities towards accessibility and active transport

Compactification of cities, i.e., the opposite of urban sprawl, has been increasingly presented in the literature as a possible solution to reduce the carbon footprint and promote the sustainability of current urban environments. Compact environments have higher concentrations of interaction opportunities, smaller distances to them, and the potential for increased active mode shares, leading to less transport-related energy consumption and associated emissions. This article presents a GIS- based quantitative methodology to estimate on how much can be gained in that respect if vacant spaces within a city were urbanized, according to the municipal master plan, using four indicators: accessibility, active modal share, transport energy consumption, and a 15-minute city analysis. The methodology is applied to a case study, in which the city of Coimbra, Portugal, and a compact version of itself are compared. Results show the compact layout improves all indicators, with averages per inhabitant improving by 20% to 92%, depending on the scenario assumed for cycling, and is more equitable.This research was partially funded by the Portuguese Foundation for Science and Technology (FCT), grant numbers UIDB/00308/2020 and PD/BD/150589/2020.info:eu-repo/semantics/publishedVersio