Even when lots of people subconsciously block it out, seen objectively, traffic noises can be a very disturbing source of sound.
The noise level on a busy road can reach 80 decibels.
A car horn reaches a noise level of a good 100 decibels at a distance of 10 metres. That is about how loud a thunderstorm is.
Information and ideas:
Recording to be identified by students or used for sound effects for a radio play/story.
Relevant for teaching:
Noise: causes, effect, protection
Noise consumption and leisure-time activities
Senses discover the environment