Due to the possible threat, it poses to human health and the ecosystem, healthcare waste (HCW) handling and disposal are of major concern, especially in poor nations. Many countries are now turning to technology innovations as viable waste management solutions. Nevertheless, is still difficult for governments to choose an appropriate technology and an efficient waste management technique for the disposal of HCW. The difficulty of estimating these numbers inaccurately is addressed by using a neutrosophic set. The best alternative to HCW is hard to choose, and the process of doing so may be thought of as a multi-criteria decision-making (MCDM) issue. In this study, we propose a neutrosophic TOPSIS approach for assessing potential HCW alternatives. The weights of the requirements are calculated TOPSIS method. The best HCW alternative is assessed using the suggested approach.

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Through observation, it is noticed that the design solutions of the inner spaces of residential units in Cairo have circulation problems. These problems are represented in direct and indirect separation between different zones in apartments, whether private or semi-private. This is due to; reduced areas, site location, building policies, etc. Such problems obstruct resident’s way of everyday life, and their living quality. After introducing such problems, this paper proposes a set of shape-grammars rules that facilitate designers, through their process to produce a range of design alternatives for the same area. Shape grammars’ rules are set according to three aspects: a) required relationship between zones for Carians culture, b) building policies as a constrain, c) the given building area in different situations (attached to neighbours or free standing, etc.) That rule works as a design tool for any designer in Cairo to select the suitable alternative and facilitate his creativity through the process.

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