Which technology is primarily used for measuring speed in traffic enforcement?

• A. Radar systems
• B. Video monitoring
• C. Laser systems (Lidar)
• D. GPS tracking

Answer: (C)

Laser systems, often referred to as Lidar (Light Detection and Ranging), are primarily used for measuring speed in traffic enforcement due to their accuracy and precision. Lidar technology utilizes laser beams to measure the distance to a moving vehicle, allowing law enforcement officers to calculate its speed accurately over a short range. This method provides a higher level of detail than traditional radar systems, as it can target a specific vehicle in a more controlled manner, minimizing interference from surrounding traffic.

Additionally, Lidar devices are portable and can be operated from stationary positions or moving patrol units, enhancing the flexibility of enforcement strategies. The technology's ability to accurately measure speed even in challenging conditions makes it a preferred choice by law enforcement agencies in many contexts.

While other technologies like radar systems, video monitoring, and GPS tracking can be used in traffic enforcement, they often lack the level of precision and targeted measurement that Lidar systems provide specifically for speed enforcement.