The sign "Expansion table - without oncoming traffic 2-lane plus left lane" indicates a type of roadway configuration where the road widens into an expansion area, typically to allow for easier merging or passing. This sign is usually placed before a section where the road expands to two lanes in one direction, with an additional left lane that may be used for turning or as a passing lane.

Drivers should be aware that this setup is designed to facilitate smoother traffic flow, especially in areas where merging could become congested. It's important to maintain a safe distance from other vehicles when approaching this section and to be cautious when changing lanes to avoid collisions. Always follow the rules of yielding, especially to vehicles already in the lanes.