# Weight-In-Motion Systems

*Last updated: 2026-06-26*

> A truck rolls over a flush road sensor at full travelling speed – and a Weight-in-Motion (WIM) system captures its gross weight, individual axle loads, and vehicle classification without any stop or intervention.

A truck rolls over a flush road sensor at full travelling speed – and a Weight-in-Motion (WIM) system captures its gross weight, individual axle loads, and vehicle classification without any stop or intervention. Piezoelectric sensors or bending plates embedded in the carriageway transmit data to a processing unit that checks compliance with legal limits in real time. Road authorities use WIM technology for overload enforcement, traffic counting, and pavement maintenance planning. Unlike static weighbridges, where vehicles must pull over and stop, WIM installations monitor entire road corridors continuously without disrupting traffic flow. For hauliers, this means that overloading can be detected and penalised even where no visible checkpoint is present.

**Source:** [https://en.wikipedia.org/wiki/Weigh-in-motion](https://en.wikipedia.org/wiki/Weigh-in-motion)

## Quick Facts

| Property | Value |
|---|---|
| Term | Weight-In-Motion Systems |
| Language | EN |
| Word count | 110 |
| Last updated | 2026-06-26 |
| Source | https://en.wikipedia.org/wiki/Weigh-in-motion |

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