Born Bergerac in the Dordogne on 06 April, 1815, Louis-Léger Vauthier was an engineer who designed bridges and roadways and was elected to the French Assemblee nationale in May, 1849[1], as a member for the departement of Cher. Dordogne (Dordonha is a department in central France named after the Dordogne River. An engineer is a person professionally engaged in a field of Engineering. A bridge is a Structure built to span a Gorge, Valley, Road, railroad track, River, Body of water A road is an identifiable route, way or path between two or more places. This article is about the country For a topic outline on this subject see List of basic France topics. The French National Assembly. The other is the Senate ( “Sénat”) In the Terminology of Political geography and Historiography a National department (département departamento is an administrative Cher ( Occitan: Char) is an administrative department located in the centre of France.
Although deported for his revolutionary ideas, he became a civil engineer in Spain and then Switzerland before returning to Paris in 1861. Deportation, not to be confused with Extradition, generally means the expulsion of someone from a place or Country. A civil engineer is a person who practices Civil engineering, one of the many engineering professions Spain () or the Kingdom of Spain (Reino de España is a country located mostly in southwestern Europe on the Iberian Peninsula. Switzerland (English pronunciation; Schweiz Swiss German: Schwyz or Schwiiz Suisse Svizzera Svizra officially the Swiss Confederation Paris (ˈpærɨs in English; in French) is the Capital of France and the country's largest city He also spent several years in Recife, Brazil. Recife ( heˈsifi is the fifth largest Metropolitan area in Brazil and the capital of the state of Pernambuco. |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld
He is known to have proposed an early idea for a 'Chemin de fer circulaire interieur' in 1865 [2] - which would have formed an early Paris Metro. And again in 1872, 1886 and 1887 he put forward more ideas for an urban transit system in the capital.
In cartography, he is also credited with one of the earliest (if not the first) thematic map to use isolines to display a non-geographic variable on map--- a contour map of the population of Paris in 1874. A thematic map displays spatial pattern of a theme or series of attributes A contour line (also Level set, isopleth, isoline, isogram or isarithm) of a function of two
References
- ^ http://www.assemblee-nationale.fr/histoire/biographies/1789-1889/Tome_5/VAUDREY_VERDOLIN.pdf
- ^ Metropoliain by M Passion, Office Technique Graphique, Bibliotheque historique de la ville de Paris, 1988
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