Skip to main content

Communication Mediums for Signal, ITS, and Freeway Surveillance Systems Final Report (1996) / Chapter Skim
Currently Skimming:

A.1.4 Computer Considerations in Communication
Pages 198-203

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 198...
... What Is an ATC? The definition vanes, since its functional characteristics often differ from one application to the next; however, there are severe common factors to the new generation of ATCs: · A VME computer bus (a nonproprietary computer bus structure)
Read the entire page →
From page 199...
... Two basic configurations are available to ensure 2070 compatibility with existing NEMA and Mode} 170 controller cabinet standards: Me TS3 and the 2070 respectively. The 2070 supports sophisticated applications such as adaptive intersection control, integrated corridor management, emergency surveiliance/pre-emptive management, emergency call box communications, etc.
Read the entire page →
From page 200...
... Front Panel The 2070 front pane! assembly consists of two keypads and a 4x40 LED display managed by a dedicated microprocessor for high display update rates.
Read the entire page →
From page 201...
... Thus, one of the primary causes of failure "handling" is eliminated. Table A.~.4-1 Requirements versus Capabilities of Various Controllers Features NEMA MODEL NEMA 2070 TS-1 170 TS-2 Industry stanclard, open architecture computer No Yes No Yes Based on openly available real-time OS No No No Yes Use of high-level languages No No No Yes Powerful microprocessor .
Read the entire page →
From page 202...
... The 2070 Intelligent Multiplexers route data to the actual devices (e.g., intersection controller, CMS signs, etc.) , often over multidrop modem interfaces.
Read the entire page →
From page 203...
... has set up a task force to track MC developments and disseminate information. ATCs are now being deployed In highway management, toll collection, intersection control, and other transportation applications.
Read the entire page →

Key Terms

  • traffic operations
  • functional modules
  • intersection control
  • adaptive intersection
  • operations center

  • module incorporates
  • advanced transportation
  • architecture computer
  • intelligent multiplexer
  • transportation controller

  • vmebus specification
  • computer bus
  • fmal report
  • dedicated microprocessor
  • condom algorithms

  • previous generations
  • led display
  • communications module
  • establish compatibility
  • electncal equipment

  • additional benefits
  • call box
  • processor module
  • electrical protection
  • update rates

  • equipment specifications
  • intersection condom
  • traffic controllers
  • display managed
  • applications software


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.