answers: Darién Gap
context: with some sections abandoned and unusable). Nicaragua has also closed its rail network in 1996, though the majority of it was gauge, with some lines along the Atlantic Coast. Costa Rica's railroads are of gauge, along with a private gauge railroad at 3.5 km in length. The railroads of Panama are connected to Costa Rica. The country had two gauges: originally broad gauge , which was converted to standard gauge () in 2000, and narrow gauge (914 mm). Like the situation with roads, the Darien Gap is a formidable obstacle to railroads, and no railways cross it into South America. </s> and develop a global partnership for development. North–South divide The North–South divide is broadly considered a socio-economic and political divide. Generally, definitions of the Global North include the United States, Canada, Europe, developed parts of Asia (Japan and the Four Asian Tigers, Hong Kong, Singapore, South Korea and Taiwan) as well as Australia and New Zealand. The Global South is made up of Africa, Latin America, and developing Asia including the Middle East. The North is home to all the members of the G8 and to four of the five permanent members of the United Nations Security Council. The North </s> 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
question: gap between the north and south american road systems