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Communication Mediums for Signal, ITS, and Freeway Surveillance Systems Final Report (1996) / Chapter Skim
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A.5.4 Measures of Effectiveness for Communications Technology
Pages 514-517

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From page 514...
... Similarly, if We maintenance cost in the 5th year is defined as current cost, We fixture cost if given by: F = P (1 ~ iffy, where if = inflation rate For the example given, if maintenance cost is given in current dollars and the average inflation rate is 3.5%, then future cost is projected to be $1 18,769. Thus, interest rates and inflation factors may be used to adjust cost to a common comparative basis as needed.
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From page 515...
... ; Ability to meet communications availability needs; Compliance with open standards; Provisions for open network management standards; Latency of the network versus latency requirements, as defined by time synchronization and response time needs; t Ability to meet maintainability objectives: . Built-~n self test and test reporting · Repair level and confidence factor · Network management standards compatibility · Hot swap-out of changeable electronic modules; and · Time synchronization, and system synchronization requirements (accuracy and resolution)
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From page 516...
... Thus, magnum acceptable values may be defined. ~ evaluating technologies to meet these requirements, a nominal life cycle cost may be established based on lowest cost compliant bid.
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From page 517...
... ; Integration needs of LANs from various sites; · Advent of digital multimedia over a common network; Trend toward Vader bandwidth network devices such as ATM switches operating at OC-3 and OC-12; and Trend toward switched hubs with 0th band interconnecting hubs (such as switched 10 Base T ETHERNET hubs with 100 Base T ETHERNET backbones)
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Key Terms

  • data closet
  • current dollars
  • data rate
  • management standards
  • requirements wig

  • procurement approach
  • exceeding requirements
  • network management
  • increased data
  • yearly maintenance

  • wig reserve
  • compliant bid
  • media requirements
  • comparative costs
  • modular expansion

  • current procurement
  • excess features
  • established based
  • terminal update
  • loading support

  • includes information
  • adjust cost
  • network standards
  • qualitative value
  • information routing

  • assuming yearly
  • common comparative
  • network devices
  • current value
  • head management


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