Sirens

Three types of moving vehicles use different types of sirens for emergency use: the Police; the Fire Brigade; and the Ambulance services. The codes for the Police and the Fire Brigade are well written for centuries to avoid any confusion.
It is difficult for all citizens to recognize the siren sounds easily enough. The numbers of ambulance vehicles have increased lately, especially in the private sector. Regular monitoring is necessary to enforce the regulations. Sometimes the ambulances not on emergency duty use the siren on the crowded roads, for priority passage. The misuse of sirens should not be allowed.