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The Norwegian language word by means a town or city–there is no distinction between the two words as there is in English. Historically, the designation of town/city was granted by the king, but since 1996 that authority was given to the local municipal councils for each municipality in Norway. In Norway today, there are 108 towns/cities, but ...
In France, the population warning is made via air raid siren. This network is called the "Réseau national d'alerte" (RNA). The system is inherited from the air-raid siren network (défense passive) developed before World War II. It consists of about 4,500 electronic or electromechanical sirens placed all over France.
A civil defense siren is a siren used to provide an emergency population warning to the general population of approaching danger. Initially designed to warn city dwellers of air raids (air-raid sirens) during World War II, they were later used to warn of nuclear attack and natural disasters, such as tornadoes (tornado sirens).
The latest “warning day” was conducted after an embarrassing flop in 2020, when the country held its first such test in 30 years and many civil defense sirens around Germany didn't go off.
The popularity of fire sirens took off by the 1920s, with many manufacturers including the Federal Electric Company and Decot Machine Works creating their own sirens. Since the 1970s, many communities have since deactivated their fire sirens as pagers became available for fire department use. Some sirens still remain as a backup to pager systems.
Municipalities in Norway are the basic unit of local government. Norway is divided into 15 administrative regions, called counties. These counties are subdivided into 357 municipalities (as of 2024). The capital city Oslo is both a county and a municipality. Map of municipalities (2020)
Oklahoma City tests its tornado sirens every Saturday at 12 p.m., unless there's already inclement weather to be expected. The noise can be quite jarring, especially if there's clear skies and sun.
The new sirens, similar to a tsunami warning system, are being incorporated into the city’s emergency services, which include mass cell notifications, an emergency call center for people to call ...