USE QUADRASONIC SIRENS - REDUCE RESPONSE TIMES - SAVE MORE LIVES
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SUITABLE FOR ALL EMERGENCY VEHICLES
QUADRASONIC SIRENS use four sound emitters with specified frequencies and waveforms
mounted within tuned enclosures - producing focussed directional sound beams.
Our cutting edge siren technology directs the sound beams to the front, rear, and sides.
This state of the art system enables motorists to easily
judge the speed, distance and direction of Emergency Vehicles.
Motorists can then calmly take appropriate action.
USING QUADRASONIC DIRECTIONAL SIRENS FOR EMERGENCY VEHICLES
SOLVES THE FOLLOWING PROBLEMS COST EFFECTIVELY.
1. QUADRASONIC SIRENS WILL REDUCE RESPONSE TIMES
Between 1996 and 2023 the average response time to fires in domestic dwellings
has risen from 5.5 minutes to 8 minutes
- an increase of over 45% -
has risen from 5.5 minutes to 8 minutes
- an increase of over 45% -
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ref: https://www.gov.uk/government/statistics/detailed-analysis-of-response-times-to-fires
Quadrasonic Sirens will facilitate quicker movement of Emergency Vehicles
through traffic, reducing response times and driver stress
and saving more lives.
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through traffic, reducing response times and driver stress
and saving more lives.
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QUADRASONIC SIRENS DEMONSTRATION
The two higher pitched horns sound together followed by the two lower pitched horns. Note the enhanced Doppler effect letting you know if the vehicle is travelling towards you or away from you. It also enables motorists to judge the speed and direction of approaching emegency vehicles. |
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2. QUADRASONIC SIRENS WILL REDUCE ACCIDENTS INJURIES and FATALITIES
USING QUADRASONIC SIRENS WILL REDUCE COSTS AND SAVE LIVES
BY AVOIDING ACCIDENTS BETWEEN EMERGENCY VEHICLES
AND MEMBERS OF THE PUBLIC
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ACCIDENT STATISTICS INVOLVING EMERGENCY VEHICLES FITTED WITH CURRENT SIRENS
and MEMBERS of the PUBLIC - RESULTING in SERIOUS INJURIES and FATALITIES
BY AVOIDING ACCIDENTS BETWEEN EMERGENCY VEHICLES
AND MEMBERS OF THE PUBLIC
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ACCIDENT STATISTICS INVOLVING EMERGENCY VEHICLES FITTED WITH CURRENT SIRENS
and MEMBERS of the PUBLIC - RESULTING in SERIOUS INJURIES and FATALITIES
The National Safety Council -
10 year data study.
ref: injuryfacts.nsc.org/motor-vehicle/road-users/emergency-vehicles
9tap and rotate to enlarge)
10 year data study.
ref: injuryfacts.nsc.org/motor-vehicle/road-users/emergency-vehicles
9tap and rotate to enlarge)
3. ONE EXAMPLE OF THE CONSEQUENCES
CRASH at CROSSROADS in LUTON Bedfordshire UK
(on mobile - double click and rotate to enlarge)
(on mobile - double click and rotate to enlarge)
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This was the result. Traumatised firefighters, three girls
with pelvic and abdominal injuries, one person in serious condition. This is one of the 431 preventable crashes which happen per year in the UK. USING QUADRASONIC DIRECTIONAL SIRENS will significantly reduce the number of injuries and fatalities. |
USING QUADRASONIC DIRECTIONAL SIRENS
will significantly reduce the number of injuries and fatalities
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OUR VISION
"Revolutionising health and safety through state of the art directional siren technology,
reducing costs and protecting lives."
OUR MISSION
"To deliver the Quadrasonic Siren System to emergency services across the globe,
enhancing response effectiveness and helping save more lives"
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will significantly reduce the number of injuries and fatalities
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OUR VISION
"Revolutionising health and safety through state of the art directional siren technology,
reducing costs and protecting lives."
OUR MISSION
"To deliver the Quadrasonic Siren System to emergency services across the globe,
enhancing response effectiveness and helping save more lives"
________________________________
If you would like further information,
or to arrange a demonstration or participate
in a pilot scheme - please contact -
Jez Brandon
DIRECTIONAL EMERGENCY SIRENS LTD
j[email protected]
+44 (0)796 426 9350
The Quadrasonic Siren System is supported by Innovate UK, the Department of Science,
Innovation and Technology, and the Royal Academy of Engineering.
___________________________________________________________________________
or to arrange a demonstration or participate
in a pilot scheme - please contact -
Jez Brandon
DIRECTIONAL EMERGENCY SIRENS LTD
j[email protected]
+44 (0)796 426 9350
The Quadrasonic Siren System is supported by Innovate UK, the Department of Science,
Innovation and Technology, and the Royal Academy of Engineering.
___________________________________________________________________________
4. REASONS WHY THESE ACCIDENTS OCCUR
Accidents often happen at junctions with unobstructed views
and occur frequently in built up areas, especially at junctions.
Current electronic sirens often cause psycho-acoustic trauma in motorists,
resulting in motorists freezing or panicking and taking inappropriate action.
Emergency Vehicles fitted with current Yelp and Wail sirens travelling at 30 mph (48 kph)
give just 1 seconds advance warning of their approach at crossroads.
see electronic siren testing - opens in new window.
(Warning! These videos shows vehicle crashes which some people might find upsetting)
Accidents often happen at junctions with unobstructed views
and occur frequently in built up areas, especially at junctions.
Current electronic sirens often cause psycho-acoustic trauma in motorists,
resulting in motorists freezing or panicking and taking inappropriate action.
Emergency Vehicles fitted with current Yelp and Wail sirens travelling at 30 mph (48 kph)
give just 1 seconds advance warning of their approach at crossroads.
see electronic siren testing - opens in new window.
(Warning! These videos shows vehicle crashes which some people might find upsetting)
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UNITED STATES of AMERICA
(on mobile - double click and rotate to enlarge) |
WORLD WIDE
(on mobile - double click and rotate to enlarge) |
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USING QUADRASONIC SIRENS
WILL DRAMATICALLY REDUCE THE NUMBER OF ACCIDENTS, INJURIES AND FATALITIES
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QUADRASONIC Sirens are Easily Located by Motorists,
will improve response times, reduce costs, and help save lives.
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will improve response times, reduce costs, and help save lives.
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APPLICATIONS - ALL EMERGENCY SERVICES
Fire & Rescue - Ambulance - Police
- Coastguard - Mountain Rescue - Blood Service
- Air Fields - Industrial complexes - Refineries
REGIONAL SUITABILITY
World Wide
Fire & Rescue - Ambulance - Police
- Coastguard - Mountain Rescue - Blood Service
- Air Fields - Industrial complexes - Refineries
REGIONAL SUITABILITY
World Wide
FITTING - from new or retrofitted in a range of effective cofigurations
- grill (see Image) roof and door mounting.
- grill (see Image) roof and door mounting.
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5. DO CURRENT SIRENS HELP or HINDER ?
"The crash risk without lights and sirens is 7.0 per 100,000 transports,
and increases to 16.5 when lights and sirens are used throughout the transport"
ref: https://injuryfacts.nsc.org/motor-vehicle/road-users/emergency-vehicles
WHEN USING CURRENT LIGHTS AND SIRENS
THE NUMBER OF FATALITIES IS OVER TWICE AS MUCH
Using QUADRASONIC Sirens is likely to dramatically reduce fatalities and injuries
enabling the emergency services to save even more lives.
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Research demonstrates that the YELP and WAIL sirens,
which are based on 50 year old technology,
can cause psycho-acoustic trauma in motorists,
whose responses are often to freeze or panic.
"IT IS CLEAR THAT THE USE OF EMERGENCY LIGHTS AND SIRENS CONSTITUTES A CLEAR
AND PRESENT DANGER FOR BOTH EMERGENCY PERSONNEL AND THE GENERAL PUBLIC"
ref : Bledsoe, BE, EMS Myth #4: Lights and sirens save a significant amount of travel time and save lives
EMS World– American Military University November, 2003
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5. DO CURRENT SIRENS HELP or HINDER ?
"The crash risk without lights and sirens is 7.0 per 100,000 transports,
and increases to 16.5 when lights and sirens are used throughout the transport"
ref: https://injuryfacts.nsc.org/motor-vehicle/road-users/emergency-vehicles
WHEN USING CURRENT LIGHTS AND SIRENS
THE NUMBER OF FATALITIES IS OVER TWICE AS MUCH
Using QUADRASONIC Sirens is likely to dramatically reduce fatalities and injuries
enabling the emergency services to save even more lives.
_____________________________________________
Research demonstrates that the YELP and WAIL sirens,
which are based on 50 year old technology,
can cause psycho-acoustic trauma in motorists,
whose responses are often to freeze or panic.
"IT IS CLEAR THAT THE USE OF EMERGENCY LIGHTS AND SIRENS CONSTITUTES A CLEAR
AND PRESENT DANGER FOR BOTH EMERGENCY PERSONNEL AND THE GENERAL PUBLIC"
ref : Bledsoe, BE, EMS Myth #4: Lights and sirens save a significant amount of travel time and save lives
EMS World– American Military University November, 2003
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PROFESSIONAL EVALUATION
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"One issue of concern to many fire officers and the general public would appear to be that with the yelp and wailer sirens it is extremely difficult to detect where the sound is coming from.
Mr Brandon demonstrated directional sound signals he has developed, and it would appear that the use of directional sirens could reduce accidents and potentially reduce fatalities and injuries. The Fire Service could benefit from reduced driver stress and cost savings from a reduction in the number of vehicles being off the road due to accidents" Operational Equipment Team Manager - Fire & Rescue Service |
"Having discussed your research and development into directional vehicle sirens and audible warning devices, I must reiterate my support for this work.
Having been in a position to see the result of incidents where emergency vehicles have had occurrences which resulted in injury and death on the road, any advance in technology that would assist and improve the pre alerting of road users must be a benefit. The airport fire and rescue service would benefit from this technology, as responding to emergencies in low visibility causes problems for those awaiting our response" Watch Commander - International Airport |
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HOW DO SIRENS WORK ?
Emergency Vehicle with YELP! and WAIL! sirens
INCORRECTLY LOCATED by both motorists.
(click or tap image to enlarge)
Emergency Vehicle with YELP! and WAIL! sirens
INCORRECTLY LOCATED by both motorists.
(click or tap image to enlarge)
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Emergency Vehicle operating QUADRASONIC SIRENS
CORRECTLY LOCATED by both motorists
(click or tap image to enlarge)
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If you would like further information,
or to arrange an online or live demonstration please contact -
Jez Brandon
DIRECTIONAL EMERGENCY SIRENS Ltd
[email protected]
+44 (0)796 426 9350
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The Quadrasonic Siren System is supported by Innovate UK, the Department of Science,
Innovation and Technology, and the Royal Academy of Engineering.
Innovation and Technology, and the Royal Academy of Engineering.
