Conception des ambiances urbaines de qualité. La végétation pour une perception plus raffinée des espaces publics en climat semi-aride.

Creating urban public spaces ensuring the comfort of city dwellers is one of the fundamental issues of sustainable development of cities. The climate has always been considered as one of the major elements of the dynamics and atmosphere of a city. Vegetation implanted in an urban environment modifies the physical environment (light, heat, wind, sound, humidity, etc.). The aim is to highlight the impact of the presence of vegetation on the use of outdoor public spaces in summer and on the users behaviors, as well as on the variation of the urban microclimatic parameters. The case of the city of Constantine (Algeria) with a semi-arid climate is used as case study. The research method uses surveys, observations, in situ measurements and numerical simulations. The presence of vegetation has a positive effect for the qualification of the thermal and visual environments for this type of climate.