NORTHEAST NEW JERSEY ROUTE GUIDANCE SYSTEM (RGS): CASE STUDY OF A DISTRIBUTED SYSTEM

The general trend toward distributed processing is affecting the traffic-control field, fueled by the availability of low-priced microprocessors in a general environment of increasing communications costs. The Northeast New Jersey Route Guidance System (RGS), now in the final design phase, serves as an example to illustrate the reasons behind this current trend. One of the major decisions facing the traffic-control system designer concerns the selection of the communication system to be used between a central control base and the remote controllers/processors. A portion of the decision is outlined by which a 1972 recommendation for central control, made as part of a surveillance-and-control system feasibility study, was modified to distributed control in 1977, during the preliminary design phase of that project. Five communication alternatives, analyzed for use in the RGS, are described. Two of the five alternatives, requiring the least expensive communication-media leasing costs, entail distributed rather than central control.

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Filing Info

  • Accession Number: 00331309
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 15 1981 12:00AM