Weigh In Motion systems from Kistler reliably detect overloaded trucks.

Weigh In Motion solutions

Traffic monitoring, weight enforcement and bridge protection made simple

Aging infrastructure, increasing traffic and overloaded vehicles pose a threat to our society and call for countermeasures to keep roads and bridges safe. Advanced Weigh In Motion (WIM) systems from Kistler enhance traffic safety, help to maintain road quality, and protect bridge infrastructure.

System integrators around the world choose Weigh In Motion solutions from Kistler as part of high-level traffic management systems. Thanks to their reliability and robustness, high degree of accuracy, and effortless integration, our solutions are used to safeguard and sustain roadways and structures of all kinds.

Kistler - the global market leader in WIM technology

We are the global market leader for Weigh In Motion systems, pioneering precise, reliable solutions that are trusted around the world. With decades of expertise, Kistler is raising the bar for real-time, accurate vehicle weight data for vehicles in motion while at the same time driving efficiency and innovation across industries.

100.000+ Lineas sensors

installed worldwide

30+ years of innovation

with unique quartz technology

50+ countries

where Kistler traffic solutions are present

Quartz crystal technology from Kistler - at the core of every sensor

Our Weigh In Motion solutions use Lineas high-precision quartz crystal sensors, which are known for their consistently high performance under all traffic and weather conditions.

Lineas sensors measure wheel and axle loads and also determine gross vehicle weights without disrupting the flow of traffic.

Explore the benefits of quartz technology

Installed in the road, Lineas sensors provide highly accurate measurement signals.

Quartz crystal technology for the most challenging piezo dynamic force measurement applications

Innovation

The secret of the outstanding performance of our Weigh In Motion solutions: Kistler’s unique piezoelectric quartz technology combined with advanced sensor design. Up to 50 disk-shaped quartz crystals, no larger than a contact lens, are at the heart of every Lineas sensor.

Large bridges such as the Great Belt Bridge in Denmark benefit from Weigh In Motion solutions.

Stability

Lineas sensors have demonstrated their durability in paved roads worldwide, performing with precision under conditions ranging from the freezing winters of Northern Europe to the hot deserts of the Middle East. Designed for long-term reliability, they have a life expectancy of at least 10 years. Built on our pioneering expertise, Lineas sensors are virtually maintenance-free, even with extensive use, and often outlast the roads in which they are installed.

Weigh In Motion Systems deliver accurate weight measurements of all vehicle types at all speeds.

Accuracy

Thanks to their wide measuring range, Lineas sensors can accurately measure both light and heavy vehicles, maintaining high levels of accuracy across all vehicle types. From walking pace to racing speeds, our Weigh In Motion solutions ensure consistent results at all vehicle velocities.

Manufactured to highest quality standards

The Lineas Digital Weigh in Motion sensors are manufactured according to highest quality standards.

As a leading provider of quartz piezoelectric measurement technology, we achieve maximum performance by using advanced production equipment operated by skilled specialists at our ISO-certified Swiss plant. Advanced manufacturing processes allow us to maintain full control of every step, ensuring the highest quality at every stage along the way.

Explore the production facility

All sensors used for our Weigh In Motion systems are accurately assembled, tested and calibrated inhouse.

Each sensor undergoes rigorous inspections, including tightness checks and functional tests. Our calibration system ensures uniform sensitivity across the entire sensor length. Furthermore, every sensor is 100 percent tested, factory-calibrated, and checked with high-precision tools before leaving our Swiss headquarters, ensuring reliable, top-quality products.

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Tailored Weigh in Motion systems in the KiTraffic series

Choose from a variety of KiTraffic packages, each designed to meet the specific requirements of different WIM applications ranging from traffic data collection to direct enforcement. KiTraffic Weigh In Motion systems come with piezoelectric quartz technology in the form of our Lineas sensors and electronics. KiTraffic Statistics and KiTraffic Basic are made up of analog Lineas sensors and WIM Data Loggers. KiTraffic Digital, the certified solution for enforcement, consists of Lineas Digital sensors and industrial-grade electronics with Kistler software.

Exceptional reliability

KiTraffic solutions combine our unique Lineas quartz WIM sensors with proprietary electronics and software for the most accurate and reliable vehicle detection.

Seamless integration

Open data protocols for seamless transfer of vehicle data ensure effortless integration into higher-level systems.

Unmatched accuracy

Advanced software specifically developed for Lineas WIM sensors ensures the highest accuracy, from low to high speeds, meeting strict OIML accuracy standards.

User-friendly setup

A modern web-based interface allows for easy setup and calibration of all Weigh In Motions systems and sites.

KiTraffic Statistics

The cost-efficient solution for traffic data collection

Accuracy
- ±10-15% of gross vehicle weight (GVW)
Scope of delivery
- Lineas Compact 9196A sensors
- WIM Data Logger

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KiTraffic Basic

The reliable solution for pre-selection of overloaded vehicles

Accuracy
- Accuracy: ±5-10% GVW (gross vehicle weight)
- Certified to OIML R 134 class F10
Scope of delivery
- Lineas 9195G sensors
- WIM Data Logger

Explore KiTraffic Basic

KiTraffic Digital

The most advanced solution for direct weight and tire enforcement

Accuracy
- Accuracy: ±2-5% GVW (gross vehicle weight)
- Certified to OIML R 134 class F5
Scope of delivery
- Lineas Digital 9181A sensors
- Industrial grade electronics with Kistler software

Explore KiTraffic Digital

Our Weigh In Motion systems are fully compliant with global standards such as OIML R134, COST 323, and ASTM E1318-0.

Accuracy you can trust

Our Weigh In Motion systems combine unique Lineas sensors, industrial-grade electronics, and advanced software – all developed, tested, and manufactured according to highest quality standards. Fully compliant with globally recognized standards, including OIML R134, COST 323, and ASTM E1318-09, our Weigh In Motion solutions provide independent proof of performance, delivering reliable, accurate vehicle weighing.

Our Weigh In Motion systems can be seamlessly integrated into higher-level traffic management solutions.

Flexible integration and networking

Our Weigh In Motion systems can be easily extended with additional third-party components like vehicle dimension scanners or ANPR cameras for license plate recognition. With machine-readable interfaces and open data protocols, our WIM measuring chains can be integrated seamlessly into higher-level traffic management solutions.

Applications

Weigh In Motion solutions from Kistler are designed to cover a wide range of applications, including:

Pre-selection for weight enforcement

Weigh In Motion systems allow for efficient vehicle preselection for traffic checks by quickly providing essential weight data. These solutions automatically record vehicle weights, axle loads and tire conditions at high speeds, resulting in higher success rates for identifying potential violators and lower workloads for authorities.

Automatic preselection of overloaded vehicles
Less road damage and elimination of illegal competition between transport companies

Explore KiTraffic Basic

Direct weight enforcement

As soon as legal requirements are met, direct weight enforcement with a high-speed Weigh In Motion solution provides the most efficient method for automated heavy vehicle checks. Thanks to Kistler’s exacting accuracy standards, violators can be detected across multiple traffic lanes and penalized immediately.

Automatic, 24/7 enforcement of load violations without disrupting traffic flow
Significant improvement in weight enforcement campaigns with direct fines for overloaded vehicles, eliminating the need for static scales
OIML R134 certification facilitates national type approvals

Explore KiTraffic Digital

Automated tire screening

Incorrectly inflated tires are not easy to detect with visual inspections. Automated Tire Screening (ATS) is a feature of Weigh In Motion systems that allows authorities to automatically monitor tire pressure on all passing commercial vehicles, helping to identify potentially unsafe, damaged or flat tires and improve road safety.

Automatic tire checks of all passing vehicles without disrupting traffic
Detection of tire types and anomalies such as underinflation, flats, mismatches or missing tires
Available as a simple upgrade for existing Kistler WIM sites

Explore KiTraffic Digital

Traffic data collection

Weigh In Motion solutions help refine infrastructure planning, optimize road maintenance and improve traffic flow uniformity by providing real-time traffic data collection.

Automated, non-stop traffic data collection
Reliable and accurate measurement of vehicle loads
Enrichment of vehicle count and classification data with weight information
Tracking of special transports

Explore KiTraffic Statistics

Bridge protection

Weigh In Motion systems from Kistler protect bridges around the world by collecting traffic load data as well as preventing overloaded vehicles from driving over the bridge itself.

WIM data enables traffic load analysis and life expectancy calculations
Protection against overloaded vehicles - extending bridge lifetimes
Seamless combination with Structural Health Monitoring systems

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Industrial weighing

Weigh In Motion solutions provide a highly efficient way to manage industrial weighing, helping to streamline processes such as invoicing goods, checking axle loads, and measuring overall vehicle weights at ports, mines, and concrete plants – all as vehicles drive by.

OIML R134-certified for legally compliant weighing
Easy integration with components like RFID transmitters or LPR cameras for enhanced functionality
Fast installation with minimal disruption to operations

Weigh In Motion systems can be used to charge road users depending on vehicle weight.

Weight based tolling

Weigh In Motion systems generate revenue for road construction by charging drivers based on their vehicle’s weight and road impact, ensuring fair tolls, covering maintenance costs and preventing overloaded vehicles from accessing roads and bridges.

Easy integration with existing toll systems
Scalable for multiple lanes

Effortless installation and worldwide support for maximum performance

Our services for Weigh In Motion solutions include site selection, installation and calibration, training and more.

Global support and comprehensive services

Thanks to our global sales and service network, we offer a range of tailored services to maximize the performance of every WIM site. They include expert support during site selection, installation, and calibration, as well as comprehensive training programs and warranty extensions to enhance the individual WIM user experience and extend the lifespan of each WIM system.

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Lineas sensors for Weigh In Motion systems can be efficiently installed in all types of pavements.

Efficient and minimally invasive installation

Lineas sensors are designed for quick installation, typically completed within a single day, and deliver reliable measurements for years. Lineas sensors can be installed on all types of pavements, including concrete and asphalt, with minimal disruption to traffic flow and limited need for road closures. Installation is cost-effective, requiring no heavy machinery and causing minimal road damage – only a small slot in the pavement. The modular and flexible design allows for easy adaptation to different lane widths, and the absence of screws and frames reduces the risk of flying parts, ensuring a safe and efficient setup.

Weight enforcement references

The Brooklyn-Queens Expressway in New York is protected by Weigh In Motion from Kistler for direct weight enforcement.

Brooklyn Queens Expressway (US)

In New York city the Brooklyn-Queens Expressway (BQE) with a triple-cantilever design is facing tremendous challenges due to overladed vehicles. Kistler's Weigh In Motion systems were deployed to help identify overloaded vehicles automatically. Recently Kistler’s WIM systems were certified and put into operation as the first automated citation system in the country and as a result overloading is diminishing. The collected data is also used to calculate the bridge's life span and to perform accurate traffic load analysis. “The collaboration with Kistler and C2SMART was key to bringing this first-in-the-nation automated direct enforcement system to life,” said Tanvi Pandya, P.E. DBIA, executive director, BQE Design Build & Emergency Contracts.

Data collection and research references

Erftstadt, A1 Highway (Germany)

The Institute of Highway Engineering at Germany’s RWTH Aachen University chose our KiTraffic Digital Weigh In Motion system for their pioneering “Digital Twin Road” research project. In 2023, 10 Lineas Digital sensors were integrated seamlessly into Germany’s busy A1 highway – with no need for special road preparation or repaving. A special sensor layout was designed exclusively for this project, highlighting our commitment to offering flexible layout options and meeting customers’ needs.

Bridge protection references

Weigh In Motion for bridges: El Carrizo (227 m), equipped with Kistler WIM, is the second highest bridge in North America.

El Carrizo Bridge (Mexico)

The El Carrizo highway bridge in Mexico, the second highest bridge in North America, faced a significant traffic accident in 2018, leading to its closure. To enhance its safety two Weigh In Motion (WIM) checkpoints were installed using Kistler technology. The WIM system, consisting of accurate Lineas WIM sensors, measures automatically axle loads and total vehicle weights of passing vehicles. The WIM solution provided by Kistler ensures optimal compliance with weight restrictions and improves the overall bridge safety.