Zwiesler Resources, Inc. (ZRI) is dedicated to making
state-of-the-art, electronic traffic control available
globally at affordable prices. Our sales focus is international
and export oriented.
We are experts in solar powered traffic control systems.
In addition to selling its own products, ZRI is prepared to
be your global source of all components for traffic control,
including different types of detection equipment, conflict
monitors, traffic controller software, communications, central system
software, solar power components, traffic cabinets, LED traffic
signals, and more.
ZRI was founded in 2006 by
Kohl, who has over 40 years of experience in
the traffic control industry. His background is international
and includes a wide range of traffic control
hardware and software, plus international sales, marketing, and
new product development.
inquiries are welcome!
ZRI's product philosophy is to
provide the most cost-effective, state-of-the-art traffic
control hardware and software even if this means deviating from
certain US standards, which often do not apply directly in the
Over the course of decades, the US traffic
control industry has developed a large number of standards for traffic control
hardware under the auspices of groups such as IMSA, ITE, NEMA,
CALTRANS and NTCIP.
While standardization has its benefits, it has also
Currently, few US agencies are willing to
consider new traffic control products "outside of the
box," as defined by published standards. For example, even though
DC-powered LED traffic signals are now readily available, current US standards still require use
power for traffic signals, traffic control equipment, and cabinet wiring.
Conventional traffic cabinets are
becoming larger and more expensive, and their high power
consumption makes solar power operation impractical.
ZRI is going in the opposite
direction. You will find that our SBC-2400 Traffic Control
System has greatly reduced the physical size and cost of the
electronics, yet from a performance standpoint, the system will
handle a high percentage of intersections.
We are specialists in solar
power. All our traffic control components are powered by 12 or 24 VDC, but
can also be powered by 120/240 Vac. This includes the
SBC-2400 Controller CPU board,
SSC power board,
unit (CMU), loop detectors,
and communication equipment. DC power capability facilitates
solar power to control intersections. We are prepared
to furnish solar powered intersections as a system, including 12
or 24 VDC
powered LED traffic and pedestrian signals.
SBC-2400 controller CPU
programmed using TRIP
traffic control software (Traffic Responsive Interval Program). In
addition, Wapiti Microsystems, a well-known developer of
controller software in the USA, has modified a version of its
W4IKS Program (developed for 170 controllers) to work with the
SBC-2400. This gives the SBC-2400 controller the ability to work
with the Wapiti central system.