The sign is called "Multi-lane vehicles allowed" (1024-19). This traffic sign indicates that vehicles with multiple lanes are permitted to use this roadway or area. It typically means that certain types of vehicles which are designed to operate in multiple lanes, such as buses or trucks, have the authority to access or travel on that particular road.

This sign is often found in areas where there are specific restrictions for vehicle types or where certain lanes are designated for particular vehicle classes. It helps to regulate the flow of traffic and ensures the safety of all road users by clearly indicating where multi-lane vehicles are allowed.

If you have any further questions about this sign or other traffic rules, feel free to ask!