The MIRT is perfect for under cover police use.
No visible light is emitted! That means that through the exclusive use
of Infrared Transmission you will completely blend in with all other
traffic, yet be able to safely control intersections!
- Small unit 7”x7”x2” high
- Mounts on dash or visor!
- Infrared light source, no visible flashing light
- Perfect for under cover detective applications
- No expensive installation on existing vehicle
- High quality electronics, perfect for heavy usage
- Portable! Plug in & go! Easily moved from vehicle to vehicle
- High signal light output! Trigger traffic light
change from more
than 1500 feet!
- The most affordable Emitter on the market!
- Less than half of the cost of competing products!
- Manufactured by a trusted name in the industry,
with 15+ years
experience in electronics!
The normal operation of any traffic signal controlled intersection is
designed for the maximum and efficient throughput of vehicular
traffic.
Unfortunately, a common occurrence at any intersection is traffic
back-up, which can require many signaling cycles to clear. Without the
ability to change the operation of the traffic signals themselves, police
and emergency response vehicles can also be forced to sit in traffic, thus
dramatically increasing their response times to crime scenes and fire or
medical emergencies.
Furthermore, even without heavy traffic, a police or emergency response
vehicle entering a traffic signal controlled intersection at a high rate
of speed places all motorists (and sometimes pedestrians) at extreme
risk.
Traffic signal preemption is an optical communications system that
allows preemption-equipped vehicles to alter the normal operation of
preemption-equipped traffic signals.
A fire truck is dispatched to an emergency.
The fire truck is equipped with multiple emergency warning lights and a
siren… The fire truck is also equipped with a preemption transmitter,
which, in operation, is a high intensity forward-facing strobe light that
is flashing at a rapid rate - much faster than normal attention-getting
lights on the fire truck.
When the fire truck approaches within 1,800 feet (line-of-sight) of a
preemption-equipped traffic signal controlled intersection, the preemption
detector (normally mounted on the cross-arm that suspends the traffic
signal) "sees" the fire truck’s preemption transmitter and locks onto its
flashing strobe.
Once the traffic signal "sees" the fire truck, it begins to initiate a
"preemption sequence" of the actual traffic signal that is different from
normal operation.
If the fire truck already has a green light, the light will remain
green. Any other direction that also has a green light (usually the
opposite direction) will first get a yellow light, then red.
When all of the other directions are then red, and the fire truck’s
direction is the only one that is green, the left turn arrow will
illuminate (if one exists), and a brilliant white flood lamp mounted near
the traffic signal will begin to flash. This flood lamp tells the driver
of the fire truck that he now has control of the intersection, and
complete right-of-way.
If the fire truck has a red light, any other direction that has a green
light will transition to yellow, then red. When all the directions
(including the fire truck’s) are red, the traffic signal facing the fire
truck will then turn green, along with the left turn arrow (if one
exists), and the brilliant white flood lamp will begin to flash.
Once the fire truck has passed through the intersection, optical
communication with the preemption detector (on the traffic signal) is
lost. At that time the traffic signal will default back to normal
operation. Conversely, until the fire truck passes through the
intersection, it will have a green light, regardless of the time
duration.
If several intersections are within the 1,800 foot range of the fire
truck’s preemption transmitter, they will all respond accordingly to the
above operational description.
