• Japan: standard improved roads length 2017

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This statistic presents the length of roads meeting the standards according to the Ordinance on Road Structure in Japan from 2010 to 2017. In 2017, the length of standard-improved roads amounted to approximately 775 thousand kilometers, representing an increase from around 740 thousand kilometers in 2010.

Length of standard-improved roads in Japan from 2010 to 2017 (in 1,000 kilometers)

	Road length in thousand kilometers
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Release date

November 2019

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Region

Japan

Survey time period

2010 to 2017

Special properties

data as of April 1 of each stated year

Supplementary notes

According to the source, 'standard-improved' means that the quality of roads, such as width, alignment, inclination, and visibility, is improved to meet the standard stipulated by the Ordinance on Road Structure.
Figures are 'real lengths'. According to the source, real length of roads refers to the length of roads minus duplicate length (duplicate sections), length not in service (sections for which no notification of commencement of service has been provided) and water length (sections on the sea, rivers, lakes or marshes where ferrying services are available).

Due to the Great East Japan Earthquake, figures for 2011 and 2012 partly include data for city, town and village roads as of April 1, 2012 and before.

Data prior to 2015 come from previous reports.