This study examines the strategies used to implement urban improvements in Ain Smara (Constantine, Algeria) and assesses the population's impact on the success or failure of these initiatives. The hypothesis is that a lack of resident involvement in the early stages (lack of information, shared diagnosis) and supervision are the main causes of project failure. Findings emphasize that a lack of information and resident involvement contributes to unsustainable development. The success of such projects depends on informed and involved residents before and after project launch. Mechanisms tailored to the Algerian context for effective participation are identified.

Roukia Bouadam, Wail Chetbi