Bus and car drivers are the main cause of this noise. They continuously keep blowing their cars' horns without stop. Our streets become crazy with the noise. The horn was made in the car to be used when necessary and to avoid accidents. For our drivers it is meant for other purposes.
Bus drivers use it to attract the attention of the people in the streets.
That is very silly. They do not realize that if some wants a dabab they will signal for it to stop. Car and bus drivers also use it at the traffic lights. Why it is necessary to use the horn while the light changes to green. It does not speed things up.