| Presentation | 2013-01-17 Restoration Status for Damage Caused by the Great East Japan Earthquake and Future Responses Toshiya MASUZAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the Great East Japan Earthquake on March 11, 2011, which was the fourth strongest earthquake ever recorded in world history, telecommunication facilities were damaged in unprecedented ways. The large-scale earthquake and tsunami affected many exchange office buildings and facilities. Further damage was caused due to depletion of battery capacity associated with the prolonged disruption in commercial power supply. The tremendous disaster caused service disruption of approximately 1.5 million circuits for fixed lines and 4,900 mobile base stations after the earthquake. However, more than 90 percent of the affected exchange offices and mobile base station equipment had been restored by the end of March through an all-out effort over 11,000 people. Even by the end of April, in areas where customers currently reside, the service restoration has been mostly completed except only a part of areas experiencing construction difficulties, including severed roads. In parallel with the restoration effort, disaster emergency message services for voice, mobile and the Internet had quickly provided in order for safety confirmation. NTT group installed special public telephones and Internet access environment, and also lent mobile phones, satellite mobile phones and tablets for free to the affected people of disaster and government agencies. As communication services are vital to social infrastructure, and in light of the above events, we are in advance our efforts in disaster countermeasures. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Disaster Recovery / Restoration / Tsunami / Power Outage |
| Paper # | ICM2012-46,LOIS2012-56 |
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| Conference Information | |
| Committee | LOIS |
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| Conference Date | 2013/1/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Life Intelligence and Office Information Systems (LOIS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Restoration Status for Damage Caused by the Great East Japan Earthquake and Future Responses |
| Sub Title (in English) | |
| Keyword(1) | Disaster Recovery |
| Keyword(2) | Restoration |
| Keyword(3) | Tsunami |
| Keyword(4) | Power Outage |
| 1st Author's Name | Toshiya MASUZAWA |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation() |
| Date | 2013-01-17 |
| Paper # | ICM2012-46,LOIS2012-56 |
| Volume (vol) | vol.112 |
| Number (no) | 379 |
| Page | pp.pp.- |
| #Pages | 49 |
| Date of Issue | |