United States Department of Transportation
i
Rural applications of Advanced Traveler Information Systems : evaluation of satellite communications systems for mayday applications
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1999-12-01
[PDF-359.74 KB]
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Alternative Title:Evaluation of satellite communications systems for mayday applications
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Edition:Final report
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NTL Classification:NTL-INTELLIGENT TRANSPORTATION SYSTEMS-Traveler Information;NTL-INTELLIGENT TRANSPORTATION SYSTEMS-Emergency Management;NTL-SAFETY AND SECURITY-SAFETY AND SECURITY;
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Abstract:This report documents the results of an evaluation of satellite communication systems for mayday applications conducted as part of the Rural Applications of Advanced Traveler Information Systems (ATIS) study. It focuses on satellite communications systems that could provide full coverage in all rural areas, as well as urban areas, and could be integrated into a mayday system. Two communication systems were tested: American Mobile Satellite Corporations’s (AMSC) Geosynchronous (GEO) satellite system and Orbital Communications Corporation’s (ORBCOMM) low earth orbit (LEO) satellite system. Both voice and data two-way communications were considered for evaluation. Several tests were conducted to determine the time to send and receive messages between a mobile user and a response center. This report presents detailed findings of these tests and provides concepts for an in-vehicle communications device, system requirements, technical requirements, and potential development partners. The report also presents recommendations on FHWA actions for follow on testing and
system deployment to meet the goals of the National Intelligent Transportation System ( ITS) program, as they relate to improving safety by providing mayday assistance in rural areas.
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