What are parking lamps used for?

Parking lamps are designed specifically to illuminate a vehicle's surroundings when it is parked. This function enhances visibility for both the parked vehicle and other road users, especially during low-light conditions such as nighttime or in poor weather. By using parking lamps, a driver can ensure that their vehicle is more noticeable to others, which helps prevent accidents and potential collisions.

While other options mention various functions, they do not accurately represent the specific purpose of parking lamps. For instance, indicating speed and enhancing performance are functions unrelated to the lighting systems used in vehicles. Communicating with other drivers during traffic is typically accomplished using turn signals, brake lights, or headlights rather than parking lamps. The designated role of parking lamps is to help with visibility around a stationary vehicle.