By Topic

Disaster prevention measures of NTT for telecommunications network systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Adachi, Y. ; Disaster Prevention Planning Office, NTT, Tokyo, Japan ; Obata, H.

In Japan, earthquakes and other natural disasters such as typhoons and heavy rains occur frequently. Developing measures to prevent communication interruptions caused by natural disasters, especially earthquakes, is a major priority of telecommunication service companies. Recent disaster damage in Japan is outlined, and preventive measures being taken by Nippon Telegraph and Telephone (NTT) are described. NTT's design guidelines are based on three fundamental principles: improving network reliability, whereby facilities are physically reinforced and strengthened; preventing isolation, ensuring that communication with disaster-stricken districts is constant; and rapidly restoring services. Each of these principles and the methods used for their implementation are discussed.<>

Published in:

Communications Magazine, IEEE  (Volume:28 ,  Issue: 6 )