Noise in the subway.

I don’t like itinerant vendors in the subway personally. I think that if the subway system comes under private management, they will disappear. But it still remains under the public and it seems not to change in days to come. A commercial transaction is illegal and it violates the right of others because all itinerant vendors speak with a loud voice! The subway is public place and it is also not spacious like a playground. Whenever they sell their goods, I have to turn up the volume on my mp3 player. Maybe you think that I’m very careful about details especially hearing. But have you ever experience that you are vexed by them? I bet you felt it. Besides, a commercial transaction has sharply increased recently, so immediately after one itinerant vendor pass through, another one come in. Therefore, I have to hear the noise from them until I arrive at my destination. Passengers, myself included, have a right to sit at ease and quietly. I hope to take strong action against a commercial transaction in the subway.