The M25 is a major motorway that encircles London, England. It is one of the busiest roads in Europe, connecting various towns and cities around the capital. Opened in 1986, the M25 helps to manage traffic flow and provides access to important routes, making travel easier for commuters and freight transport. This motorway is about 117 miles long and features several junctions that link to other major roads, such as the M1 and M4. The M25 is often known for its heavy traffic, especially during peak hours, but it plays a crucial role in the transportation network of the region.