This sound is like medicine – it is unpleasant but it saves lives. Vehicle detection radar ticking at the railway crossing. Recorded in Semkhoz area in Sergiyev Posad.

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Recorded September 5th, 2010 (CA-14)
Published September 11th, 2010.

Мда,наблюдается некоторое сходство с тем звонком в доме культуры
Спасибо за столь неожиданные комментарии.