The sign you are referring to is a "Narrowing sign - with oncoming traffic" combined with an integrated sign indicating "left entrance." This sign means that the road ahead narrows due to an oncoming lane of traffic while there is also an entrance to the left.

In practical terms, this means that as you approach this area, you will need to be cautious. The lane you are in may be reduced in width, and oncoming traffic will be present. Additionally, there is a possibility of vehicles entering from the left, which means you should be prepared to yield if necessary.

Drivers should slow down, be attentive, and ensure that they maintain a safe distance from other vehicles, particularly those entering from the left and oncoming traffic. It is important to be aware of your surroundings and to signal your intentions clearly to other drivers to ensure safety.