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Capacity and Level of Service at Unsignalized Intersections Final Report Volume 2 - All-Way-Stop-Controlled Intersections (1996) / Chapter Skim
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Chapter Seven. Delay Models
Pages 57-62

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
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From page 57...
... The total delay for each vehicle was aggregated into five minute intervals, with the delay for a given vehicle attributed to He time central in which it departed from the stop line. The average delay for a given time Interval is the sum of the total delay divided by the number of vehicles departing Dom the stop line doling that interval.
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From page 58...
... The date collected et the three AWSC intersections with single lanes on each approach make up this validation data set with 125 5-minute data points. Delay Forecasts The delay forecas s were plowed against the measured field delay for Me 5-minute data for Tree single lane sites.
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From page 59...
... Level of Service Ranges for Stop Controlled tcrsechons Fluid Dam 100 Figure 30. Delay Forecast, Model 1, Validation Sims 100 -, al
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From page 60...
... =3 l .............. ~O O 2 O O O _ BINDINGS AND RECOMMENDATIONS The analysis presented In this working paper support several important findings pith respect to a decision on the appropriate capacity and delay models for AWSC intersections.
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From page 61...
... However, this may In some cases lead to signal warrants being prematurely met Recommendations The analysis presented in this report shows that bow Delay Models 1 and 2 produce good quality forecasts. While the mode} testing results weighed slightly in favor of Delay Mode} 2, the validation study showed that Delay Mode} ~ may beige more appropriate tool.
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Key Terms

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  • field data
  • stop line
  • forecast errors
  • proposed delay

  • awsc intersections
  • equal values
  • relay model
  • connecting equal
  • los forecasts

  • hem update
  • forecasted delay
  • models produce
  • total delay
  • testing results

  • results weighed
  • delay forecasts
  • delay forecas
  • minute intervals
  • computing delay

  • single lane
  • errors model
  • field delay
  • field measurements
  • pith respect

  • produce reasonably
  • appropriate tool
  • recommended hat
  • lane sites
  • perform wed


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