How wide is a dual carriageway?

A dual carriageway typically consists of two lanes for each direction, separated by a central reservation or median. The total width can vary, but it generally ranges from about 20 to 30 meters (65 to 98 feet) when including the lanes, shoulders, and central reservation. Each lane is usually around 3.25 to 3.75 meters (10.7 to 12.3 feet) wide. Specific dimensions may vary based on local regulations and design standards.