It is proposed that “segmentation” might offer the least risky approach for natural ventilation design of non domestic tall buildings.Accordingly, the generic design procedure are proposed for investigating the influence of segmentation on ventilation air flows: firstly, the single cell envelope flow model is adopted to evaluate the steady state bulk flows through openings under a specified design condition; secondly, dynamic thermal modelling with an air flow network module is used, because of the particular importance of the coupling between the airflow and thermal process for evaluating the year round ventilated cooling potential of targeted spaces. The chosen thermal model utilizes a multi cell airflow network model (AFN) since the targeted buildings can no longer be described by a single cell model; thirdly, computational fluid dynamics (CFD) simulation is suggested in the later design stage to cope with insufficient resolution of local airflow distribution in previous modelling stages; finally, the overall performance of comfort ventilation is then interpreted in relation to adaptive thermal comfort theory by the use of Building Bioclimatic Charts, which offers a way of rapidly testing whether or not natural ventilation is likely to produce comfortable conditions.The novelty of this work lies not in the methodology, which uses available modelling tools, but in the evaluation of naturally ventilated tall buildings with reference to segmentation in the climatic context of Taiwan. The effect of segmentation is evaluated by comparing the overall ventilation performance under three different building configurations, namely the isolated, segmented and non segmented tall buildings.

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“[Something] triggered city council to say, ‘Hey we need something to make it more of a palatable kind of environment for people in Old Town.'”Thus, the city began a pilot program in September 2004 to allow sidewalk caf dining along King Street. While the pilot had its challenges, such as dealing with noise, maintaining space for pedestrians and ensuring visual appeal, council made the program permanent in 2006. After addressing a few other hiccups, council adopted the King Street Outdoor Dining Overlay Zone in 2008.”I don’t know who to give credit for, for passing the outdoor dining ordinance but that was the game changer,” Shaw said.