Measurement of management and development deficit on sustainability in neighbourhood unit. Case of the new city Ali Mendejeli Constantine

Wastewater and household waste management are among the most significant issues for sustainable districts. Their management requires quantifying spatial relationships between the appreciation spaces rate and well-being. This research aims to quantify the effect of development and management deficits on the sustainability of social housing districts. The case study is the neighbourhood unit in the new Ali Mendjli Constantine, Algeria, characterized by high urban concentration. The critical points marking the latter relate to health and well-being problems. The methodology used in this research is a qualitative survey based on J.P. Thibaud’s commented course approach. It involves the surveyed population selection who create the course according to the issue asked. The results show that more than 50% of the neighbourhood’s spatial configuration directly affects the appropriation feeling, with a high dissatisfaction rate of approximately 85%. Furthermore, the interviewees declared that intermediate spaces within their neighbourhoods are spread over large areas without delimitation and specific development and management, making space assumption difficult. Thus, these spaces become sources of conflict and tension