page_title: Paris Métro
section_title: History
hierarchical_section_title: Paris Métro / History
context_page_description: The Paris Métro, short for Métropolitain, is a rapid transit system in the Paris metropolitan area, France. A symbol of the city, it is known for its density within the city limits, uniform architecture and unique entrances influenced by Art Nouveau. It is mostly underground and 214 kilometres long. It has 302 stations, of which 62 have transfers between lines. There are 16 lines, numbered 1 to 14 with two lines, 3bis and 7bis, which are named because they started out as branches of Line 3 and Line 7; later they officially became separate lines. Lines are identified on maps by number and colour, with the direction of travel indicated by the terminus.
  It is the second busiest metro system in Europe, after the Moscow Metro, as well as the tenth busiest in the world. It carried 1.520 billion passengers in 2015, 4.16 million passengers a day, which amounts to 20% of the overall traffic in Paris. It is one of the densest metro systems in the world, with 245 stations within the 86.9 km² of the City of Paris. Châtelet–Les Halles, with five Métro lines, three RER commuter rail and platforms up to 800 metres apart, is one of the world's largest metro stations.
context_section_description: By 1845, Paris and the railway companies were already thinking about an urban railway system to link inner districts of the city. The railway companies and the French government wanted to extend main-line railways into a new underground network, whereas the Parisians favoured a new and independent network and feared national takeover of any system it built. The disagreement lasted from 1856 to 1890. Meanwhile, the population became denser and traffic congestion grew massively. The deadlock put pressure on the authorities and gave the city the chance to enforce its vision.
  Prior to 1845, the urban transport network consisted primarily of a large number of omnibus lines, consolidated by the French government into a regulated system with fixed and unconflicting routes and schedules. The first concrete proposal for an urban rail system in Paris was put forward by civil engineer Florence de Kérizouet. This plan called for a surface cable car system. In 1855, civil engineers Edouard Brame and Eugène Flachat proposed an underground freight urban railroad, due to the high rate of accidents on surface rail lines. On 19 November 1871 the General Council of the Seine commissioned a team of 40 engineers to plan an urban rail network. This team proposed a network with a pattern of routes "resembling a cross enclosed in a circle" with axial routes following large boulevards. On 11 May 1872 the Council endorsed the plan, but the French government turned down the plan. After this point, a serious debate occurred over whether the new system should consist of elevated lines or of mostly underground lines; this debate involved numerous parties in France, including Victor Hugo, Guy de Maupassant, and the Eiffel Society of Gustave Eiffel, and continued until 1892. Eventually the underground option emerged as the preferred solution because of the high cost of buying land for rights-of-way in central Paris required for elevated lines, estimated at 70,000 francs per metre of line for a 20-metre-wide railroad.
  The last remaining hurdle was the city's concern about national interference in its urban rail system. The city commissioned renowned engineer Jean-Baptiste Berlier, who designed Paris' postal network of pneumatic tubes, to design and plan its rail system in the early 1890s. Berlier recommended a special track gauge of 1,300 mm (4 ft 3 ³⁄₁₆ in) (versus the standard gauge of 1,435 mm or 4 ft 8 ¹⁄₂ in) to protect the system from national takeover, which inflamed the issue substantially. The issue was finally settled when the Minister of Public Works begrudgingly recognized the city's right to build a local system on 22 November 1895, and by the city's secret designing of the trains and tunnels to be too narrow for main-line trains, while adopting standard gauge as a compromise with the state.
caption: During the initial construction of the Métro, the tunnels were excavated in open sites and then covered.
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