The M3 Motorway is a major road in the United Kingdom, connecting London to Southampton. It spans approximately 60 miles and serves as a vital route for both local and long-distance traffic, facilitating the movement of goods and people. Opened in stages between 1971 and 1995, the M3 features multiple lanes and various junctions that link to other important roads. It plays a crucial role in the regional economy, supporting access to key areas such as Winchester and Basingstoke. The motorway is also known for its scenic views, particularly as it passes through the South Downs National Park.