Generally, when water trucks come, many people don't want to be sprayed, but careful people will find that almost all water trucks in the country play the same music, and many people will have questions. Why do sprinklers always play the same music? The reasons are as follows.
? It is convenient for citizens to form a reflex arc. Whenever they hear music, they will know that the sprinkler is approaching. If you change your music frequently, many citizens will not know that the sprinkler is coming. Some citizens will easily make trouble when splashed with water, and many people will complain, so they will not change their music.
? And the music of sprinkler is just like the music of police car, 120, 1 19. Generally, when we hear the music of these cars, we can consciously know what kind of cars they are, judge the distance by sound, and make some adjustments to our own routes to facilitate the work of these cars.
Generally, the music of these cars will not change, which can not only remind the public, but also greatly reduce some unnecessary losses. These music let us make some preparations before the car comes, forming a good reflex arc.
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