Pan-American Highway
The Pan-American Highway is a network of roads stretching across the American continents and measuring about in total length. Except for a rainforest break of approximately , called the Darién Gap, the roads link almost all of the Pacific coastal countries of the Americas in a connected highway system. According to "Guinness World Records", the Pan-American Highway is the world's longest "motorable road". However, because of the Darién Gap, it is not possible to cross between South America and Central America with conventional highway vehicles. Without an all-terrain vehicle, it is necessary to circumnavigate this terrestrial stretch by sea.
Transport in Finland
64% of all traffic on public roads takes place on main roads, which are divided into class I ("/") and class II ("/") main roads. Motorways have been constructed in the country since the 1960s, but they are still reasonably rare because traffic volumes are not large enough to motivate their construction. There are of motorways. Longest stretches are Helsinki–Turku (Main road 1/E18), Helsinki–Tampere (Main road 3/E12), Helsinki–Heinola (Main road 4/E75), and Helsinki–Hamina (Main road 7/E18). The world's northernmost motorway is also located in Finland between Keminmaa and Tornio (Main road 29/E8).