Louis-Léger Vauthier (6 April 1815 – 5 October 1901) was a French engineer who designed bridges and

roadway A carriageway (British English) or roadway (North American English) consists of a width of road on which a vehicle is not restricted by any physical barriers or separation to move laterally. A carriageway generally consists of a number of tra ...

s and was elected to the

National Assembly of France The National Assembly (french: link=no, italics=set, Assemblée nationale; ) is the lower house of the bicameral French Parliament under the Fifth Republic, the upper house being the Senate (). The National Assembly's legislators are known a ...

in May 1849, as a member for the

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Cher Cher (; born Cherilyn Sarkisian; May 20, 1946) is an American singer, actress and television personality. Often referred to by the media as the Honorific nicknames in popular music, "Goddess of Pop", she has been described as embodying female ...

. Vauthier was born in Bergerac in the

Dordogne Dordogne ( , or ; ; oc, Dordonha ) is a large rural department in Southwestern France, with its prefecture in Périgueux. Located in the Nouvelle-Aquitaine region roughly half-way between the Loire Valley and the Pyrenees, it is named af ...

department. Although

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for his revolutionary ideas, he became a

civil engineer A civil engineer is a person who practices civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructure while protecting the public and environmental health, as well as improving existing ...

in Spain and then Switzerland before returning to Paris in 1861. He also spent several years in

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, Brazil. He is known to have proposed an early idea for a "Chemin de fer circulaire intérieur" in 1865 Metropoliain by M Passion, Office Technique Graphique,

Bibliothèque historique de la ville de Paris The Bibliothèque Historique de la Ville de Paris, commonly abbreviated with the acronym BHVP, is a public library specializing in the history of the city of Paris, France. Formerly in the Hôtel Saint-Fargeau (now part of the Musée Carnavale ...

, 1988 - which would have formed an early

Paris Metro Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Sin ...

. And again in 1872, 1886 and 1887 he put forward more ideas for an urban

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system in the capital. In

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, he is also credited with one of the earliest (if not the first)

thematic map A thematic map is a type of map that portrays the geographic pattern of a particular subject matter (theme) in a geographic area. This usually involves the use of map symbols to visualize selected properties of geographic features that are not ...

to use

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s to display a non-geographic variable on map--- a contour map of the population of Paris in 1874.

References

People from Bergerac, Dordogne 1815 births 1901 deaths French civil engineers Corps des ponts École Polytechnique alumni Members of the National Legislative Assembly of the French Second Republic Members of the Ligue de la patrie française {{Civil-engineering-stub