In Japan, modern sewer systems began to appear during the late 19th century, though evidence of sewage systems in the country dates back to over 2,000 years ago. Foreign engineers introduced the Japanese to modern, underground sewer systems with above ground access points called manhoru (manholes). At that time, manhole covers utilized the geometric designs similar to those used in other countries. In the 1980s, as communities outside of Japan?s major cities were slated to receive new sewer systems these public works projects were met with resistance, until one dedicated bureaucrat solved the problem by devising a way to make these mostly invisible systems aesthetically appreciated aboveground: customized manhole covers.
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Descrizione libro Mark Batty Publisher 2010-02-16, 2010. Hardcover. Condizione libro: New. 0982075472. Codice libro della libreria 727695
Descrizione libro Mark Batty Publisher, 2010. Hardcover. Condizione libro: New. Codice libro della libreria P110982075472