The barrier prevents access to the garden.

The Nadar barrier was installed to control the crowd during the event.

It is important to respect the safety precautions to protect oneself against the virus.

It is important to respect the protective measures to protect oneself from the virus.

The level crossing guard stopped the traffic to let the train pass.

The Great Barrier Reef is the largest coral reef in the world.

The safety barriers are installed around the construction site.