Pilot Testing of SHRP 2 Reliability Data and Analytical Products: Southern California (2014) / Chapter Skim
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Pages 78-82
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Figure 5.2. Project C11 Reliability Analysis Tool result summary screen.
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world application. As shown in an example in the "Baseline Condition Estimation of the C11 Reliability Analysis Tool" section (Section 5.3)
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Figure 5.3. Unclear input directions in the C11 Reliability Analysis Tool.
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The C11 tool allows the user to enter different time horizons for each scenario in a C11 workbook. The tool appears to calculate the benefits correctly, but the future year is labeled according to the time horizon for the last scenario.
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Output Limitations Difficult to Correlate Benefit Results to TTI Although the results are generally easy to understand, the tool does not specify which set of reliability data are used to calculate the benefits. The study team eventually discovered that the benefits are based on 50th and 80th percentile travel time indices (TTIs)
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