Weigh-In-Motion (WIM)

Weigh-in-Motion (WIM) systems measure Gross Vehicle Weights (GVW) and axle spaces of vehicles on highways at a free-flow traffic speed, and thus reduce traffic delays. The product designs special cover plate, it is very convenient for installment, repairment, maintance. The indicator could shows axis weight and the whole vehicle weight.

WiM systems can also help to minimize the risk of structural overloading bridges and roads, thereby increasing safety for all road users. By continuously monitoring the weight, it is also possible to reduce wear and tear on the road infrastructure.

The WIM systems measure commercial truck weight while the vehicle is moving at either highway speeds or slow speeds. The mainline data WIM systems are only used for data collection, and are not used directly for inspection or enforcement.

Piezoelectric Weigh-In-Motion (WIM) systems use piezoelectric sensors embedded in roadways to measure the weight of vehicles as they pass over at normal traffic speeds. These sensors generate electrical signals proportional to the force exerted by the vehicle’s tires, allowing real-time weight estimation without requiring the vehicle to stop.

Key Features of Piezoelectric WIM:

High-Speed Weighing: Measures vehicle weight dynamically without disrupting traffic flow.
Compact and Cost-Effective: Requires a relatively small installation footprint compared to traditional weighbridges.
Durability: Piezoelectric sensors are highly durable and can withstand heavy traffic loads.
Multi-Lane Operation: Can be installed across multiple lanes for large-scale traffic monitoring.
Data Collection: Records axle load, gross vehicle weight (GVW), speed, and vehicle classification.