The sound came from cars idle in front of the crosswalk, having to stop due to a red light. You won't hear much since the cars are stopping; There's a sound of cars from other lanes moving and the steps of pedestrians. Located in Tampere, Finland. This was recorded with Iphone X (2017), Apple, MEMS microphones. Recording App: Audio Recorder (Jakub Bartus) This sound serves as training data for our Audio & Speech Processing Project. Also, it helps recognize the sound of cars idle in traffic in daily occasions of Tampere, Finland for people in need.