NDLI: Environmental effects of information telecommunication networks in Japan

Content Provider	IEEE Xplore Digital Library
Author	Takahashi, K.I. Nakamura, J. Maeda, T. Origuchi, T. Kunioka, T. Harada, H. Miyamoto, S. Fujimoto, J.
Copyright Year	2003
Description	Author affiliation: NTT Energy & Environ. Syst. Labs., NTT Corp., Kanagawa, Japan (Takahashi, K.I.; Nakamura, J.)
Abstract	We have undertaken an evaluation of the environmental impact of fixed-line telephone networks in Japan. We chose the life cycle assessment (LCA) method for this evaluation because it can assess the environmental burden quantitatively. Prior to the evaluation, we developed a telecommunication network model including end-user terminals, access facilities, end-offices, repeater stations and transmission facilities. The model for these facilities represents typical networks in the Tokyo metropolitan area. We have evaluated the environmental burden imposed by more than 50 pieces of equipment using life cycle inventory analysis. We found that throughout the entire life cycle, the CO/sub 2/ emissions emanating from fixed-line telephone networks during the use stage accounted for about 77% of the total. The emissions from customers' equipment were particularly heavy. We also estimated the potential recovery available by recycling equipment and facilities and the effect was a reduction of about 6% in CO/sub 2/ emissions.
Sponsorship	IEEE Comput. Soc., Tech. Committee on Electron. Environ. Int. Assoc. Electron. Recyclers
Starting Page	137
Ending Page	140
File Size	270102
Page Count	4
File Format	PDF
ISBN	0780377435
ISSN	10952020
DOI	10.1109/ISEE.2003.1208062
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intelligent networks Telephony National electric code Repeaters Urban areas Databases Telephone poles Switches Communication switching Recycling
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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