Re-Examining and Re-Interpreting Approaches to Wind in the Urban Environment

Roy Denoon
Vice President
CPP Wind Engineering and Air Quality Consultants, Denver

There are a relatively small number of cities around the world that codify planning requirements for ground-level wind conditions that may affect the public. Sydney is particularly notable, for not only being one of the early adopters of pedestrian wind criteria, but also for reviewing and updating approaches in response to developing technology and changing planning guidelines in response to city-wide experiences.

This presentation examined global municipal approaches to urban wind environments, although it is not only governments that should be concerned about pedestrian wind conditions. Developers and architects also have an interest in providing pleasant environments, as these conditions speak to the quality of design. With increasing urban density and building heights, elevated outdoor recreational areas at upper levels of tall buildings are becoming common. These areas require different approaches to assessing acceptable wind conditions in comparison with ground-level pedestrian thoroughfares, considering pedestrian conditions and potential for wind-borne debris. This presentation identified the changing needs of urban environments and provides recommendations for a common wind environment assessment framework.

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