During what condition is Lidar technology least effective?

Lidar technology, which uses laser pulses to measure distances and speed, is least effective during rainy or foggy weather conditions. This diminished performance occurs because moisture in the air—whether from rain, mist, or fog—can scatter the laser beams, leading to inaccurate readings or reduced visibility range. The presence of water particles can create a barrier that absorbs or redirects the lidar signals before they can return to the sensor, thus compromising the effectiveness of speed detection.

In contrast, conditions like clear sunny days or bright moonlight provide a favorable environment for Lidar technology, as its laser beams can travel further without significant interference from atmospheric particles. Similarly, high-contrast backgrounds enhance the visibility of targets, allowing Lidar systems to function optimally. Understanding these nuances helps operators recognize the limitations of Lidar technology and adapt their methods accordingly.