An application of logarithmic azimuthal projection is presented for use in Municipal Information System (MIS) environment in order to treat the problem of dense concentration of urban thematic symbolism over a limited portion of the city plan keeping at the same time the general overview of the whole urban layout. The test was applied to the Greek city of Volos in Thessaly, performing a projection to projection type of analysis and the relevant study of deformations. The use of such projections is of particular importance, as experience confirmed, for hard-copy urban map products in a variety of applications interesting town planners, traffic engineers, municipal administrators, public security officers, archaeologists, professional associations and other specialists dealing with urban studies and activities. On presente une application de la projection azimutale logarithmique dans l'environnement d'un systeme d'information municipale (SIM) afin de traiter le probleme de la dense concentration de symbolis...