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Capacity Analysis of Traffic-Actuated Intersections Final Report (1996) / Chapter Skim
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4 CONCLUSIONS AND RECOMMENDATIONS
Pages 35-37

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 35...
... Shared Lane Permitted Left Turns l The empirically based treatment of shared lane left turns now included in HCM's Chapter 9 does not lend itself well to the iterative computational structure. Idiosyncracies ofthis model prevented the computations from converging to a unique solution in many cases.
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From page 36...
... Simulation models may be used to generate data as an alternative to field data collection in the development of empirical relationships, and · Analytical models may be validated, or at least their credibility may be improved' by demonstrating their agreement with the simulation results. The first application involves a much bigger "leap of faith" than the second because it requires absolute confidence In the ability ofthe simulation mode} to replicate the real world.
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From page 37...
... The current version of NETSIM creates this bunching implicitly by car following logic alone. This makes the bunching characteristics highly dependent on the link length.
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Key Terms

  • net sim
  • analytical models
  • signal timing
  • simulation models
  • shared lane

  • pretimed control
  • proposed analytical
  • control analysis
  • intersection analysis
  • incremental delay

  • hem model
  • delay models
  • lane left
  • ofthis model
  • signalized intersection

  • simulation results
  • control except
  • introduced briefly
  • analysis model
  • idiosyncracies ofthis

  • based treatment
  • empirical model
  • ofthe simulation
  • explicit outputs
  • alternative incremental

  • output files
  • bunching characteristics
  • tested extensively
  • timing analysis
  • absolute confidence


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