Listen to Heavy City Traffic with Many Cars and Trucks Passing with Constant Medium Roar online. Heavy City Traffic with Many Cars and Trucks Passing with Constant Medium Roar is an English language song and is sung by The Hollywood Edge Sound Effects Library. Heavy City Traffic with Many Cars and Trucks Passing with Constant Medium Roar, from the album Cititrax Sound Effects, Vol. 4, was released in the year 2015. The duration of the song is 2:49. Download English songs online from JioSaavn.