Highway
Major highways are often named and numbered by the governments that typically develop and maintain them. Australia's Highway 1 is the longest national highway in the world at over and runs almost the entire way around the continent. China has the world's largest network of highways followed closely by the United States of America. Some highways, like the Pan-American Highway or the European routes, span multiple countries. Some major highway routes include ferry services, such as U.S. Route 10, which crosses Lake Michigan.
A6 autoroute
The A6, also known as the Autoroute du Soleil, "Motorway of the Sun", (along with the A7), is an Autoroute in France, linking Paris to Lyon. The motorway starts at Paris's Porte d'Orléans and Porte d'Italie with two branches, numbered A6a and A6b respectively, that join south of Paris. The motorway is favoured by holidaymakers as it is the main link to the South of France and the French Riviera. At 455km long it is France's third longest autoroute after the A10 autoroute and the A4 autoroute.