The audio begins with the distinctive sound of water gurgling as it flows into a street drain. There's a steady babbling that echoes the rhythm of a small brook, punctuated by the occasional splash of a heavier flow. The sound of water trickling is ever so present, creating an ambiance that is calming yet filled with a sense of purpose. As the audio progresses, the gurgling intensifies, painting an audio image of water being efficiently channeled away, demonstrating the effectiveness of the drainage system. Throughout the audio, there's a constant interplay between the lighter trickle sounds and the deeper, more resonant gurgles, creating a rich tapestry of sound that brings the listener right to the side of a busy city street after a rainstorm.