The sign "special vehicles and transport goods free" (sign number 1026-61) indicates that the area beyond this sign is exempt from general restrictions on road usage specifically for special vehicles and transport of goods. This means that vehicles that are classified as special or those that are transporting goods are allowed to pass through or operate in this area, even if there are restrictions for other vehicles.

It's important for drivers to be aware of which types of vehicles are considered special as they are typically defined by specific regulations. If you're navigating in an area where this sign is present, ensure that you understand the definitions and rules surrounding special vehicles and goods transport to ensure compliance with the traffic laws.

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