Handbook for Communicating Travel Time Reliability Through Graphics and Tables (2014) / Chapter Skim
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Pages 19-22
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19 blocked exit ramp) to determine the correct nonrecurring event label.
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20 To create the display, operating regime labels were added to the travel time (travel rate) observations.
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21 From this display it is easy to see that when the facility loading is light, the travel rate is very consistent unless a nonrecurring event takes place. But, as the facility loading increases, the travel rate increases in general, and the variation in the travel rate grows as well.
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From page 22... ...
22 Table 4. Breakdown of 5-Minute Travel Rate Observations by Operating Regime on I-5 in San Diego in 2011 To illustrate, Figure 10 shows the PMFs for these various operating conditions.
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