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Making the most of daylight in town planning
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Urban and Regional Studies.ORCID iD: 0000-0002-2230-3059
2018 (English)In: 24TH ISUF INTERNATIONAL CONFERENCE: CITY AND TERRITORY IN THE GLOBALIZATION AGE / [ed] Colomer, V, UPV Universitat Politècnica de València , 2018, p. 649-655Conference paper, Published paper (Refereed)
Abstract [en]

Making the most of daylight in town planning is one of the important ingredients in the attempts for the sustainable city. Exactly 150 years ago Ildefons Cerda presented his great work "Teoria General de la Urbanization" including methods for taking care of sunlight. However, with modern software, the possibilities to do comprehensive preparations are much better. This paper presents an urban typology considering daylight with basic geometric forms, shapes and patterns. Later this will be elaborated more in detail. The research includes three steps; choosing typical alternatives for settlements and designing some new principle urban solutions, calculations and evaluations of the alternatives considering especially energy saving. The quality and the quantity of daylight are dependent of the geometry of the urban spaces. That means the volumes for the buildings as well as the empty spaces in between. The accessibility for diffuse daylight from the sky and for direct rays from the sun is measurable by computer calculations where the sun angles and the skylight from the hemisphere are simulated. Relevant parameters are height, width and length. In a settlement with a high urban density it is more difficult to distribute daylight than in a settlement with low density. However, the economy for exploitations is also worse with lower density. Therefore, the comparisons between different settlements are with the same density. The orientation of the settlements according to the compass is of crucial importance looking to the direct sunlight and the shadows. How the local environment with parks, water, mountains and specific landmarks in the surroundings also affects the daylight distribution is included.

Place, publisher, year, edition, pages
UPV Universitat Politècnica de València , 2018. p. 649-655
Keywords [en]
Daylight, energy saving, typology, urban design, climate
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-255784DOI: 10.4995/ISUF2017.2017.6687ISI: 000476920100064ISBN: 9788490485743 (print)OAI: oai:DiVA.org:kth-255784DiVA, id: diva2:1342974
Conference
24th International Seminar on Urban Form Location: Valencia, SPAIN Date: SEP 27-29, 2017
Note

QC 20190815

Available from: 2019-08-15 Created: 2019-08-15 Last updated: 2019-08-15Bibliographically approved

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Sundborg, Bengt

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  • apa
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