The significant increase in construction industry demand with its negative effects on energy consumption is particularly evident in areas with severe climatic factors. Here, the designers aim at providing comfort with the least amount of energy, and consequently have resorted to using different software tools to choose the optimal solution in the early phase of design to avoid time and cost losses. The use of smart innovative technologies such as electrochromic (EC) glazing may provide an important contribution in reducing consumptions while providing good thermal and visual comfort conditions. Nonetheless, as shown in the literature, such glazing should be used and managed carefully to avoid any adverse effects or low performance. Thus, a parametric simulation was carried out using Rhinoceros and Grasshopper to assess the advantages in terms of energy use resulting from use of EC glazing in residential buildings as a function of façade orientation and window-to-wall ratio (WWR) with reference to the city of Biskra, located in the northeastern region of Algeria. Eight main orientations and ten WWR scenarios were investigated in order to evaluate the benefit of using this technology in the selected climatic region. The research results proved the benefit of using EC glazing in all orientations, with energy savings ranging from 35.88% in the northern façade to 60.47% in the southwestern façade.

A quantitative evaluation of noise pollution in the public gardens of Biskra, Algeria, was carried out in this research. The equivalent sound level (leq1min) was measured in 27 points distributed over the seven main gardens of the city. The results of the measurements show that the measured level of sound intensity varies from 56.38 dB in the Landon garden to 62.55 dB in the Larbi Ben Mhidi garden. By comparing, the measured values with the noise limit values recommended by the national legislation, the standards of the World Health Organization and the United States Environmental Protection Agency; it is clear that the sound environment in these public gardens do not comply with the recognized standards of acoustic comfort. The gardens’ spaces are heavily over-exposed to traffic noise resulting in high levels acoustic pollution.

This contribution investigates the correlation between street noise levels and the spatial configuration of the street network in four different types of neighbourhoods in the Algerian city of Biskra. Space syntax methods are used to analyse spatial relationships, where accessibility, intelligibility, and legibility of urban spaces can be evaluated. The degree of spatial integration is used as an accessibility indicator and is correlated with recorded noise level data at 154 points from the selected neighbourhoods. As the results show, there are strong correlations between spatial integration and recorded sound pressures on streets and roads in colonial and unplanned neighbourhoods. The reason is that these types of neighbourhoods have a street network with high correlations between street connectivity and global spatial integration. There are weak correlations between connectivity and global spatial integration throughout the modern planned neighbourhood, which again affects the correlation between noise and space. The experiment shows that space syntax methods have the potential to predict degrees of accessibility and orientability for people with visual impairments in urban planning.

The present research will focus on the concept of walkability and it is a relationship with outdoor thermal comfort. The main objective is to evaluate how far a pedestrian might be able to walk before experiencing discomfort in an outdoor environment; the thermal comfort indices used the Physiologically Equivalent Temperature (PET), calculated using Envimet 04 Software. Walking comfort indices used skin wettedness to simulate the physiological of the body that reacts to the environment. The case study located preferably in two different areas, one is a shaded area (garden), and the second one is an urban zone. The methodology adopted is based firstly on field measurement of thermal comfort and secondly on a simulation of the walking comfort of people. The findings from this research were found that shadowing affects walking behavior in Abu Dhabi during the daytime of the hot season.

The atrium is becoming more prevalent in desert regions as a key architectural and functional element in the urbanlandscape. In southern Algerian cities, we are observing an increasing integration of centralized atriums in publicbuildings. However, this integration may have an impact on the indoor environmental conditions of the buildings. Thisstudy investigates the influence of architectural aspects on the indoor thermal behavior of an existing centralized andenclosed atrium in the hot and dry climate of Laghouat. The study analyzes the influence of tow parameters, namelyheight and glazed area ratio, during summer season. The EDSL-Tas software for dynamic thermal simulation modelingwas used. The results revealed that the vertical temperature distribution in the atrium varies depending on its design,as a result of incoming solar radiation.