Priority Command uses proven, reliable 900 MHz digital
spread spectrum data radio to transmit a vehicle's GPS coordinatesincluding
location, speed, and headingalong with its ID, priority
level, and secure authorization code to a receiver connected
to an intersection signal controller. In a fraction of a second
the intersection receiver authenticates the signal, evaluates
its priority level, determines the vehicle's direction of approach,
and calculates the optimum distance at which to issue a preemption
command to the traffic signal controller.
transmitter installs easily in any emergency vehicle using standard
mobile radio mounting hardware. It is activated automatically
whenever the vehicle's lightbar is on. The driver may also turn
the transmitter on or off at any time using the Override On/Off
switch. This allows, for example, police to respond to silent
alarms or for ambulances to transport stabilized patients expeditiously
through residential neighborhoods at night without having to
use their lightbars.
Another switch allows the driver
to select Priority
extended-range four-way-red preemption. When this switch is activated,
it tells the intersection receiver to extend the preemption distance
by 50% and to turn the traffic signals to red in all directions.
This allows an energency vehicle to pass a line of backed-up
traffic by crossing over into the oncoming lane.
An additional application of
this feature is for police officers involved in high-speed pursuits.
In this scenario, four-way-red preemption serves two important
functions: it impedes the path of the fleeing criminal with red
lights and backed-up traffic in every direction, while at the
same time, it protects the public by clearing intersections in
the vicinity of the chase.
intersection receiver installs in the traffic cabinet and connects
to the preemption inputs on the computer signal controller. (An
all-weather outdoor version is also available.) It uses a powerful
microprocessor and innovative software to track approaching vehicles
and issue preemption commands to the traffic signal controller.
With its standard programming it can be configured quickly and
easily to control regular north-south, east-west intersections
of any size, any speed limit, and any yellow light time. With
modified programming it can control diagonal, five-way, and other
oddly configured intersections. It can also discriminate between
vehicles on surface streets and overpasses.
The Priority Command intersection receiver provides four levels
of high-priority preemption for emergency vehicles and two levels
of low-priority preemption for nonemergency vehicles such as
transit busses and snow plows. It can also perform "around-the-corner"
preemption so that turning vehicles can initiate a preemption
for the next intersection before they turn the corner.
Priority Command provides the best value for performance,
features, and price on the market today.
Priority Command sets a new standard for accurate, predictable
- 12-channel, WAAS-enabled GPS
- 6 priority levels4 high
(for emergency vehicles) and 2 low (for transit busses, tow trucks,
snow plows, etc.)
- Proven 900 MHz spread spectrum
frequency-shift-keyed digital data radio for reliability
- Determines the direction of
approach and calculates the optimum preemption distance for any
vehicle at any speed at any intersection
- Around-the-corner preemption
- One-way-green or four-way-red
Simple to use
Priority Command is designed with emergency vehicle drivers
- Automatic hands-free operationworks
whenever the or lightbar is on
- Large tactile-click switches
- Override On/Off
- Extended-range four-way-red
- Clear LED indicators
- Transmitter status
- GPS status
- 4-way-red status
Priority Command is built tough for the real world.
- Proven technologies
- Highest quality materials and
- State-of-the-art manufacturing
- Rugged ABS polymer cases
- Made in the USA
- Sold, installed, and supported
by traffic signal experts
Priority Command can only be used by officially authorized
- Secure encrypted data
- Exclusive ChronoKey® time-based encryption
- Sold only to government agencies
With Priority Command cities can now afford preemption for every emergency
vehicle and every controlled intersection.
- Low price
- Quick and easy installation
- No additional computers or communication
- Very little training
- Zero maintenance
Now more than ever, governments
are being called upon to protect the public from an increasingly
wider array of threats. However, limited resources must be spent
wisely to provide the greatest possible benefit. If you believe
your emergency services would benefit from faster response times
and reduced accident rates, contact us today.
seconds count, your path is clear.