1,721,206 research outputs found
Policies of Densification of Urban Environment, a necessary strategy to avoid the Consumption of Greenfield Areas in South Mediterranean Regions
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Inerzia Termica: C’è muro e muro - Speciale Energia”, in Costruire, n. 305, Abitare Segesta, Milano, pp. 96-106.
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Mapping Environmental Quality: Making the Invisible Visible
No full textNatural forces affect urban environmental quality aspects and the wellbeing
of people in space. Visualizing the impact of these forces is not straightforward,
and it tackles the invisible character of these elements. This is also the aim
of the environmental analysis which makes use of quantitative and qualitative
outcomes, in particular numerical outputs and visuals. These latter are mainly
represented by maps, showing the impact of environmental aspects over the
physical space. Most of these visual outcomes are conceptual images, i.e. forms of
representation that do not exist in reality, but give back an interpretation of the
investigated phenomena. These visual outcomes are conceived with different aims:
firstly, by making the invisible visible, environmental maps can be used for communication
purposes; secondly, visuals serve as observation devices to assess and
interpret phenomena in space, enabling geo-referred considerations which would
not be possible by referring to mere numerical outputs only; thirdly, they can be
used as design tools to affect decision making in order to improve existing conditions
or future performance of places (environmental simulation)
21st Century Milan: using new image processing techniques to assess the environmental quality of the Milan Trade Fair masterplan
No full textC’è muro e muro: Analisi delle proprietà di alcune soluzioni per chiusure verticali opache
No full textObiettivo della ricerca: la scelta delle migliori opzioni progettuali in chiave di isolamento. Le strategie mirate al risparmio energetico in edilizia promosse negli ultimi anni a livello italiano ed europeo hanno puntato principalmente sul contenimento delle dispersioni termiche. ciò ha determinato una spinta all’iperisolamento, privilegiando soluzioni costruttive in cui l’efficienza energetica viene perseguita sostanzialmente attraverso la progettazione di sistemi di involucro con livelli di trasmittanza termica sempre più bassi. La grandezza trasmittanza caratterizza però lo scambio termico attraverso le chiusure in regime stazionario, quando cioè le temperature all’interno e all’esterno dell’edificio si mantengono costanti nel tempo. Se invece le condizioni al contorno sono variabili, entra in gioco l’inerzia termica della parete, che rende conto delle modalità di accumulo e di rilascio del calore. La massa termica della chiusure opache può contribuire sia al raggiungimento del benessere termoigrometrico interno in assenza di impianti di climatizzazione, sia alla riduzione dei consumi energetici degli impianti stessi
Towards an operational model for estimating day and night instantaneous near-surface air temperature for urban heat island studies: outline and assessment
Full text linkNear-surface air temperature (NSAT) is key for assessing urban heat islands, human health, and well-being. However, a widely recognized and cost- and time-effective replicable approach for estimating hourly NSAT is still urgent. In this study, we outline and validate an easy-to-replicate, yet effective, operational model, for automating the estimation of high-resolution day and night instantaneous NSAT. The model is tested on a heat wave event and for a large geographical area. The model combines remotely sensed land surface temperature and digital elevation model, with air temperature from local fixed weather station networks. Achieved NSAT has daily and hourly frequency consistent with MODIS revisiting time. A geographically weighted regression method is employed, with exponential weighting found to be highly accurate for our purpose. A robust assessment of different methods, at different time slots, both day- and night-time, and during a heatwave event, is provided based on a cross-validation protocol. Four-time periods are modelled and tested, for two consecutive days, i.e. 31st of July 2020 at 10:40 and 21:50, and 1st of August 2020 at 02:00 and 13:10 local time. High R2 was found for all time slots, ranging from 0.82 to 0.88, with a bias close to 0, RMSE ranging from 1.45 °C to 1.77 °C, and MAE from 1.15 °C to 1.36 °C. Normalized RMSE and MAE are roughly 0.05 to 0.08. Overall, if compared to other recognized regression models, higher effectiveness is allowed also in terms of spatial autocorrelation of residuals, as well as in terms of model sensitivity
Sharing cities and citizens sharing: Perceptions and practices in Milan
Full text linkSharing economy is envisaged as an opportunity for economic, social and environmental impact, by enabling people to maximize the idling capacity of their assets. The key change of the contemporary trend regards the boundaries and types of connections that sharing economy is reshaping. The phenomenon is evident at urban scale, where digitally literate citizens may benefit from being connected through online platforms to strangers and their assets. Nevertheless, the integration of sharing in urban routines is influenced by individual perceptions, social practices and local dynamics. This paper introduces insights from a participatory process for the development of sharing urban services in the demonstration area of Milan ‘Sharing City’. Local citizens and stakeholders were engaged in workshops, focus groups and roundtables intended to mapping, understanding and assessing sharing services for daily practices (especially mobility, food provision and waste management, energy efficiency and the environment, social inclusion). This participatory process provided nuanced feedback on sharing, raising issues related to how such initiatives are known, perceived, used and integrated in their routines. This paper describes the most relevant themes emerged throughout the participatory process, to infer that sharing implies the negotiation of multitude elements, most notably citizens’ digital literacy, convenience, trust, social interactions
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