Safety Performance of Part-Time Shoulder Use on Freeways, Volume 1: Informational Guide and Safety Evaluation Guidelines (2021) / Chapter Skim
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Pages 107-113
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From page 107... ...
107 Chapter 3 – Spreadsheet Tool A spreadsheet tool implementing the CPMs presented in Chapter 2 was developed as part of NCHRP Project 17-89. This chapter provides the general functionality of the tool, describes how to use the tool for HSM analysis, and describes how to interpret results.
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108 document provides guidance on when the EB Method is applicable. If the EB Method is not applicable, then proceed to Step 5.
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109 To navigate among worksheets, click on the worksheet tabs at the bottom of the workbook window. For the first evaluation conducted by the analyst, the Welcome and the Introduction worksheets should be selected, and their respective content reviewed.
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110 Figure 22. Sample input of Segment worksheet.
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111 3.3.2 LocalValues Worksheet The predictive models, severity distribution functions, and crash type distributions were developed with data from specific jurisdictions and time periods. Local calibration will account for any differences between conditions at the jurisdictions used to estimate the models and those present at the sites being evaluated.
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112 Figure 26. Local crash type distribution in LocalValues worksheet.
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113 Figure 27. Sample summary worksheet.
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