Estrategias policiales combinadas para la prevención de ruidos en zonas urbanas nocturnas: un estudio de caso en el municipio catalán de Badia del Vallés (España)

This research analyzes the effectiveness in preventing noise complaints urban areas of police intervention through directed patrol strategy applied to hot spots. During summer periods 2015 and 2016, local Catalan municipality Badia del Vallés implemented an program that, combining use Geographic Information System a strategy, sought reduce requirements at night-time. Taking as reference data generated during intervention, those two previous years (pre-intervention period) subsequent (post-intervention period), this article evaluates such also collects descriptive analysis geographic distribution requirements. The main results reveal significant decrease when preventive strategies described were applied. Keywords: Systems (GIS), spots policing, patrol, prevention, noise.