In most cases the possibility of traditional statistical conceptions and methods for investigation of real socio-economic objects is limited. Traditional statistical methods are more appropriate for investigation of impact due to internal factors. Scan statistics allows investigating the socio-economic problems having extremely complex, i.e. synergic structure of interrelations (structure of the open systems). The analytical description of such systems enables to consider the likelihood scenarios of development of objects under investigation in a simplified way, but very seldom of objects on the whole. The use of scan statistics enables to understand and analyse the reasons of the clusters of accident and noise intensity in some specific areas of Latvia.