| EFFICIENT WEIGH-IN-MOTION
Annual Showcase 2020 | Intertraffic World
149
and knowledge in the sector.
The specialists at Mosaş provide
highly reliable technology
and engineering services
with the focus on road and
railway signaling systems,
intelligent transportation
systems, vehicle scales,
weight measurement and
size control systems,
as well as all of the
related software.
Mosaş set out in search
of a reliable solution from
an experienced partner. It
achieved both objectives when it
found Kistler and its WIM system.
The project initiated a fruitful
exchange between the two companies
that soon led to close cooperation.
Accurate weight measurements
To evaluate the participating
providers, KGM set up several test
sites near existing weighing stations.
The location assigned to the Mosaş
Group is about 1.5km (1 mile) from
the Akıncılar toll plaza on one of the
main highways leading into Ankara,
the Turkish capital.
The complete WIM system
includes Kistler Lineas 9195G quartz
sensors and the WIM 5204A data
logger. These rugged system
components deliver high-precision
measurements throughout long
service lifetimes.
2.3% The increase in maximum
deviation recorded by the
Kistler WIM system – well
Installation of the
Lineas WIM sensors in
the road pavement is fast
and straightforward. Two
sensors were installed in
a staggered layout on
each of the two lanes.
After several runs with
a calibration truck, a
maximum deviation of an
increase of 2.3% was recorded.
This was far below the required
deviation of a 10% increase stated in
KGM’s specifications. Further tests
with different vehicle classes are
currently in progress.
Project support
Kistler specialists were on site to
train the integrator on the WIM
system6. The local authorities will be
visiting the site to check the systems.
If KGM accepts this pre-selection
method, a business plan will be
drawn up to increase the budget.
If all the requirements are met, the
Ministry will decide to install WIM at
all weighing stations. This is a crucial
step that will help to protect Turkey’s
highway infrastructure and improve
safety on the nation’s roads. ■
Lineas quartz sensor for
weigh-in-motion (WIM) Lineas quartz sensors are used to
measure wheel and axle loads and
to determine gross vehicle weights
while traffic is flowing. The sensor
is installed in the pavement and the
measurement signals it provides
are highly accurate.
The quartz technology has
high measurement accuracy
and long-term stability; it is compliant
with OIML R134 (accuracy class
D2); it has a rugged sensor design
for long-term durability and a wide
measuring range; it offers low to
high-speed weighing; it is insensitive
to temperature fluctuations; and
installation in the pavement is both
fast and easy.
below the required
standard of 10%
Above: Installation
of the WIM system
has been quick
and easy thanks to
the collaboration
between Kistler and
the Mosaș Group