Management, maintenance of Yokohama-shi community threshold
Last update date September 10, 2018
With 1 Yokohama-shi community threshold
We install "Yokohama-shi community threshold" in the cause, the city of advice and instruction of Geographical Survey Institute and Japanese surveying association to supplement national triangulation point to use as threshold of surveying work in Yokohama-shi. We can confirm surveying result of Yokohama-shi community threshold by "road account book reading system" (image: 33KB) installing in the Road and Highway Bureau road Security Research Division and each ward engineering works office. In addition, after the Great East Japan Earthquake, we announce surveying result as "world land surveying system" (land surveying result 2011).
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The Road and Highway Bureau road part road Security Research Division