The sign "Groups of people free (verbal or symbolic) 1020-13" indicates areas or situations where pedestrian movement is unrestricted, meaning that pedestrians are allowed to cross or walk freely. This sign is often placed in locations where the usual restrictions for pedestrian traffic may not apply, signaling to drivers and other road users that they should be particularly cautious for the presence of pedestrians in the area.

In practice, if you see this sign while driving, it is essential to be vigilant and prepared to yield to pedestrians, as they have the right to move freely in that space. Always maintain a safe speed and be ready to stop if necessary. Understanding this sign is crucial for ensuring safe interactions between vehicles and pedestrians on the road.