1,720,968 research outputs found
ACOUSTICAL QUALITY OF INDOOR SPACES. ANALYSIS OF THE INFLUENCE OF DESIGN AND BUILDING MATERIALS
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The acoustic monitoring of urban territory. Influence of particular conditions upon noise levels
No full textDesign of an acoustical decision support system for town and traffic planning
No full textThe town planning and the traffic urban planning studies of our modern cities lead us to emphasize the impact that urban activities and movements have on the acoustic level and annoyance. In Italy the enforced rules and laws on noise pollution provide us with an optimal procedure for the measurement, valuation and noise control across the urban territory. The control of the acoustic climate of a city depends on the acoustic zoning of the urban territory which fixes restrictive limits of exposition for each area. The aim of the present paper is to assess acoustic tools of calculation and the territorial information system, useful as a decision support system for town-planning and territorial management. It includes data, text, maps, satellite images and other knowledge input. Functions and tools are available for selective extraction of spatial and temporal data. The software is made up with two main independent component: 1. Management of cartography and vectorial drawing and management of the database; 2. Components able to calculate the noise levels (Ld, Ln, LDEN and DNL) generated by transport means for an macro-scale analysis (according to the objective of the system) Thanks to its flexibility, the modular system allows to meet the demands of a wide range of applications
Noise in a hospital area. Measure and evaluation
No full textThe territory of Sciacca has been acoustically subdivided into homogeneous areas by the authors. In the present job, our attention is focused on the zones in class I that includes particularly sensitive areas as schools and hospitals. The acoustic climate inside and outside the hospital of Sciacca is carried out. The hospital was built on a hillock. Around the hillock two roads, an urban and a main highway are present, both with high traffic. With a campaign of measures, in proximity of the roads, in the hospital square, in the parking, and finally inside the hospital, the equivalent level and the patients exposure was calculated as Ld, Ln and DNL. Both the impact due to the roads (considered as external source) and due to internal traffic, equipments, tools of waste treatment (considered as internal source), has been analyzed. The comparison between noise values and normative limits allows us to evaluate the entity and the priority of the interventions
Inpact of the vehicular traffic in the acoustic-atmospheric climate of the Perreira district in Sciacca
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