Do splash pads use occupancy sensors?

Occupancy sensing on splash pads typically uses one of three technologies: overhead millimeter-wave radar that counts heads, infrared beam-break gates at entry points, or computer-vision cameras with on-device people-counting models. The radar option is most common for new flagship pads because it works in rain and through bathing-suit movement without privacy concerns. Operators feed the live count into the smart-flow controller to scale jet pressure up at low occupancy (better show, less water) or trim it down at peak (avoid mist saturation). The data also drives capacity-cap signage — a digital board near the entry shows current count vs. posted maximum and turns red when the pad is full. Some cities publish anonymized historical occupancy charts so parents can pick low-traffic times. Privacy is generally not a concern because counts are aggregate, not individual.