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KiTraffic Digital, the unique Weigh In Motion system for vehicle weight and tire enforcement

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KiTraffic Digital, the all-new Weigh In Motion (WIM) solution from Kistler, delivers unprecedented levels of precision and usability. Driven by the new Lineas Digital sensors with their unique design, it measures axle loads and vehicle gross weight with utmost accuracy – even with lane changes.

These advantages make KiTraffic Digital the solution of choice for direct weight and tire enforcement of overloaded trucks. The fully digitized measuring chain ensures ease of integration and operation: setup and cabling are highly efficient (no loops needed), and calculations are now much easier – including compensation for various environmental influences (such as road quality).

Based on advanced system architecture which enables calibration of every single quartz in the sensor, KiTraffic Digital delivers highly accurate results – regardless of the vehicle's actual position. With measuring accuracy of up to ± 2% and many additional benefits, the new Weigh In Motion system from Kistler delivers the performance that operators need for comfortable control of traffic on their roads. KiTraffic Digital was designed to measure free-flow traffic with maximum reliability, and it can even detect double, underinflated or flat tires on trucks.

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Il sistema di screening automatico ATS distingue tra pneumatici singoli, super-single e doppi.

Precise: the world’s most accurate WIM sensor

  • ± 1% in laboratory qualification tests
  • ± 2% GVW in ideal road conditions
  • ± 5% GVW in almost any road conditions
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KiTraffic Digital - world's most advanced Weigh In Motion system

KiTraffic Digital is the ultimate Weigh In Motion tool to protect road infrastructure. Thanks to an unmatched accuracy of up to 2%, it enables detecting overloaded vehicles with maximum hit rate. KiTraffic Digital operates regardless of lane changes and road quality, contributes to road safety by detecting vehicles with flat tires and features highest uptime thanks to integrated health monitoring.

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The all-new Lineas Digital WIM sensor

Lineas Digital is a highly accurate sensor based on 20 years of proven WIM quartz technology. Because each single quartz is digitized and calibrated, Lineas Digital delivers uniform signals throughout the length of the sensing element. The position of the force signal is used to detect single, dual and flat tires and to compensate road influences for each quartz. And Lineas Digital offers even more benefits: robust digital signal transmission, standardized cabling with Power over Ethernet (PoE), and a proprietary interface to KiTraffic Digital systems.

Technology highlights:

  • Quartz WIM sensor for ultra-high precision
  • Digital output
  • Digitization and calibration of each single quartz
  • Uniform signals over whole sensor length

This is how Lineas Digital is manufactured

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Quartz crystals
Quartz crystals are at the heart of every Lineas sensor. Up to 50 disk-shaped crystals, the same size as a contact lens, are installed in one sensor. The quartz is processed on special machines at Kistler's headquarters in Switzerland.
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Assembly of the sensor
Assembly of the sensor includes installing the cables and sealing the sensor to make it airtight and waterproof. As the final step, the aluminum profile is enclosed in a foam casing that dampens lateral forces.
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In-depth inspection
In-depth final inspection of the sensor includes a tightness check and various function tests. Uniform sensitivity throughout the sensor’s entire length is verified with the calibration system.
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Weigh In Motion systems from Kistler work with Lineas quarz sensors which are installed into the road.
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Installation of KiTraffic Digital in Switzerland

KiTraffic Digital in Switzerland:

  • 1 lane, 8 sensors
  • Sensor installation was quick and easy in 1 night
  • Robust electronics were prewired and preconfigured on a back panel for fast and trouble free installation on site
  • Reliable vehicle separation and classification without using loops
  • Very promising results during test campaigns
  • End customer will use the site for preselection of overloaded vehicles
Quartz crystals and the piezoelectric effect
Tecnologia piezoelettrica al quarzo
Perché preferiamo la tecnologie piezoelettrica al quarzo
La tecnologia di misura per il settore del traffico e dei trasporti di Kistler contribuisce a migliorare la sicurezza stradale e ferroviaria.
Solution for vehicle weight and tire enforcement
Find out more about our unique Weigh In Motion system KiTraffic Digital