Road State Sensor

As key traffic environment sensors, this road state sensor continuously monitors highway pavement surface condition. It measures pavement temperature, water‑film thickness, ice layer thickness and snow covering status without touching driving lanes. Installed on roadside poles, this road state sensor avoids damage from vehicle rolling. It runs stably under sun exposure, heavy snow and rainstorm. Real‑time digital data transmits to traffic management platform for triggering icy‑road or wet‑road warning alerts. Long service life lowers field maintenance workload. Expressway operators rely on this road state sensor to grasp real‑time pavement hazard information and optimize traffic safety control strategies.