Based on the "Health in All Policies" approach promoted by the World Health Organization (WHO), the concept of healthy urban planning aims to systematically and simultaneously consider the health implications and environmental consequences of any urban planning project. This involves encouraging development and urban planning choices that minimize the population's exposure to risk factors such as air pollution, noise pollution and social isolation, while maximizing health protection and promotion factors such as physical activity, access to care or green spaces, all with a view to reducing social inequalities in health.