Modeling and estimating noise pollution on the metro platforms of the Darvazeh Doulat And Tajrish station of Tehran metropolis

The problem of noise pollution is the most severe problem that most people encounter in public with excessive amounts of it. The purpose of this study is to investigate the amount of noise pollution caused by Tehran metro train traffic at the time of arrival and departure at the underground stations of Darvazeh Doulat and Tajrish.

This study, which was conducted in the summer and autumn of 1398 on the Darvazeh Doulat and Tajrish stations of Tehran Metro Line 1, showed the maximum and minimum values at specific distances from the edge of the platform. And in the morning and evening at intervals. Once every three days, 48 stations were measured and analyzed. In the continuation of the research in Tajrish station, the distribution of noise pollution has been estimated by performing limited impressions using artificial neural network.

The values measured at specific distances from the edge of the platform show that the amount of noise pollution from the arrival of trains to the platform, the simultaneous entry of two trains to the platform, the arrival of non-stop trains, and crossing the platform in most times, is higher than standard. In some harvesting stations, it reached over 100 decibels, which indicates the critical situation of noise pollution in these subway platforms.

The methods used in the present study have effectively estimated the amount of noise pollution in subway platforms. So that by identifying critical areas, by providing measures to manage the damage caused by noise pollution on the health of citizens can be managed.