Impact of the city transport noise on the territory close to the streets’ intersection

Abstract

The city of Krasnodar has a complex structure of highways. The noise generated by transport significantly exceeds the standard values. Territories located at the crossroads of streets have not been studied thoroughly. The process of spreading sound from sources at the intersections of roads is more complex. The development of additional recommendations for noise reduction for such areas is required. The results obtained are of practical interest for areas with similar placement conditions with respect to highways. Our research and developed recommendations for reducing traffic noise in residential and public buildings can be widely applied in design practice. The experimental studies in real conditions on the characteristic territory of the city of Krasnodar using current regulatory documents were performed. The research is executed experimentally with carrying out the measurements in the territory and theoretically settlement way. The good convergence of results confirms their reliability. Impact of noise in the territory of directly adjacent to the intersection, is slightly higher than values for the sites at rectilinear roads. It is established that noise pollution at a facade of the designed house does not conform to requirements of sanitary standards. The required noise reduction in rooms taking into account their appointment is established. Practical recommendations about noise reduction in inhabited and office rooms are developed. The proposed solutions will allow providing additional protection of rooms against transport noise.