CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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id ecaade2017_240
authors Al-Sudani, Amer, Hussein, Hussein and Sharples, Steve
year 2017
title Sky View Factor Calculation - A computational-geometrical approach
source Fioravanti, A, Cursi, S, Elahmar, S, Gargaro, S, Loffreda, G, Novembri, G, Trento, A (eds.), ShoCK! - Sharing Computational Knowledge! - Proceedings of the 35th eCAADe Conference - Volume 2, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 673-682
summary Sky view factor (SVF) is a well-known parameter in urban-climatic studies, but there is a lack of consensus on its effectiveness, especially with regard to the interpretation of changes in urban air temperatures. This led the authors to develop the new concept of the partial sky view factor (SVFp), which showed promise in a previous study. The objective of this study is to save the time associated with manual methods of calculating SVF and SVFp by developing a Rhino-Grasshopper component to quantify them via the hemispheric projection of a 3D model. In addition, a different approach, in terms of a hemispheric projection to calculate SVF, will be introduced by another component, and the pros and cons of each approach are considered. We will name these methods 'Ray Method' and 'Geometrical Method' respectively. The Ray Method has achieved a good balance between accuracy, processing time and urban scale and complexity compared to the Geometrical Method.
keywords Sky view factor; parametric design; Rhino - Grasshopper; urban morphology; partial Sky view factor
series eCAADe
email A.H.A.Al-Sudani@liverpool.ac.uk
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100%; open Al-sudani, A. and Sharples, S. (2016) Find in CUMINCAD Analyzing urban microclimate air temperature measurements using a novel parameter - the partial sky view factor , Proceedings of the 32nd International Conference on Passive and Low Energy Architecture (PLEA), Los Angeles, p. 1239-1245

100%; open Chen, L, Ng, E, An, X, Ren, C, Lee, M, U, Wang and Z, He (2012) Find in CUMINCAD Sky view factor analysis of street canyons and its implications for daytime intra-urban air temperature differentials in high-rise, high-density urban areas of Hong Kong: A GIS-based simulation approach , International Journal of Climatology, 32, pp. 121-136

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100%; open Lin, Tzu-Ping, Tsai, Kang-Ting, Hwang, Ruey-Lung and Matzarakis, Andreas (2012) Find in CUMINCAD Quantification of the effect of thermal indices and sky view factor on park attendance , Landscape and Urban Planning, 107, p. 137-146

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100%; open Paramita, Beta, Kamilia, Ismahnida, Nurhidayat, M.Iqbal and Ocktaviyane, Resty Ocktaviyane (2016) Find in CUMINCAD Optimization of Design and Planing VHS Building Using Chronolux , Indonesian Journal of Science & Technology, 1(2), pp. 170-184

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100%; open Unger, J. (2009) Find in CUMINCAD Connection between urban heat island and sky view factor approximated by a software tool on a 3D urban database , International Journal of Environment and Pollution, 36, pp. 59-80

100%; open Wu, j., Zhang, Y. and Meng, Q. (2013) Find in CUMINCAD Calculation method of sky view factor based on rhino-grasshopper platform , Proceedings of BS 2013: 13th Conference of the International Building Performance Simulation Association, Chambéry, France, pp. 2658-2666

100%; open Zwolinski, a. and Jarzemski, M. (2015) Find in CUMINCAD Computing and monitoring potential of public spaces by shading analysis using lidar data in 3D city models , ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Berlin, Germany, p. 743-750

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