1999 Leeds University Directional Siren Project Leeds, England --------------------------------------------------- Brought to you by EMSClassics.com www.emsclassics.com
Having used bells, two tone air horns, yelp/wail/white noise and bull horn over a 32 year career, I can honestly say that two tone air horns worked the best (in an urban environment).
Well it's 2018 and I still haven't heard it used anywhere. Maybe people should learn to check their mirrors more for flashing lights and turn down the music to listen for sirens. Mechanical sirens have proven to be more effective. Especially in addition to a traditional electronic siren. If you hear a siren always check your surroundings to see where it's approaching from. The whole point of a siren is for people to know from all angles. Especially at an intersection.
Died a quick death, never to be heard again.....From experience compressed air two tone horns seemed to be best. The more effective redesign that is used a fair bit in the US and is on a few vehicles in the UK (the limited use is down to cost) is the Fed Sig Rumbler (& other manufacturers equivalents) that adds low frequency versions of the tones that better penetrate glass & metal and can even cause vibrations perceptible to humans in cars - search on here for examples
I remember they went through a phase of trialing all sorts of wowed siren ideas. I remember hearing one in Sussex on an ambulance that sounded like a cross between a seagull and the ghostbusters car!
There is a new siren which is a higher pitch siren which allows people to here where the emergency vehicles are coming from it is linked in with different sound waves
Having used bells, two tone air horns, yelp/wail/white noise and bull horn over a 32 year career, I can honestly say that two tone air horns worked the best (in an urban environment).
20 years later, and this isn't a thing 😂
Well it's 2018 and I still haven't heard it used anywhere. Maybe people should learn to check their mirrors more for flashing lights and turn down the music to listen for sirens. Mechanical sirens have proven to be more effective. Especially in addition to a traditional electronic siren. If you hear a siren always check your surroundings to see where it's approaching from. The whole point of a siren is for people to know from all angles. Especially at an intersection.
We trialled one of these on a traffic car, bloody useless.
20 years later, ambulances in the Netherlands started to use 2 tone airhorns again....
Died a quick death, never to be heard again.....From experience compressed air two tone horns seemed to be best. The more effective redesign that is used a fair bit in the US and is on a few vehicles in the UK (the limited use is down to cost) is the Fed Sig Rumbler (& other manufacturers equivalents) that adds low frequency versions of the tones that better penetrate glass & metal and can even cause vibrations perceptible to humans in cars - search on here for examples
Used a vehicle with one fitted. Absolute rubbish.
Both teams of the football match looked only because they thought wtf.
Never heard it until watching this
This was featured in london's burning around the same time if anyone remebers!
Obv a roaring success 18 years on haha. -I heard it once about 15 years ago.
I remember they went through a phase of trialing all sorts of wowed siren ideas. I remember hearing one in Sussex on an ambulance that sounded like a cross between a seagull and the ghostbusters car!
They are widely used for reversing alarms, there they are effective. Not loud enough for emergency vehicles.
For a moment i thought i was watching Monty Python. "Two years of development have produced this sound."
2 years of development... we never used it.
Well white noise is finding a use in reversing alarms nowadays.
From 70s too 2024 two tones are best siren to use
I remember watching this as it aired, back in the good old days.
We Hong Kong got this Emergency Sound from the Ambulances and Fire Trucks when Hong Kong was still under the control of the British Government.
There is a new siren which is a higher pitch siren which allows people to here where the emergency vehicles are coming from it is linked in with different sound waves