Lisäkilvet

Lisäkilvet is a Finnish term that translates to "additional signs" or "supplementary plates." In the context of road traffic, these are supplementary signs used in conjunction with main traffic signs to provide further information or clarify the meaning of the primary sign. They are designed to offer more specific details regarding the application of the main sign, such as a duration, a specific type of vehicle affected, or a particular condition.

These supplementary plates are typically rectangular and are placed directly below the main traffic sign they modify. Common examples include signs indicating the time of day a restriction applies, such as "klo 8-18" (from 8 AM to 6 PM), or specifying that a regulation applies only to certain vehicles, like "vain kuorma-autot" (trucks only). Another frequent use is to indicate the distance to the hazard or regulated area, for instance, "200 m."

The purpose of lisäkilvet is to enhance the clarity and effectiveness of traffic signage, ensuring that drivers receive precise information relevant to their situation. By providing this additional context, they help to prevent confusion and improve road safety. The design and placement of these signs are regulated by national traffic laws and guidelines to ensure consistency and easy comprehension by road users. Their use is a common feature of Finnish road signage systems.