User’s Guide for Quantifying the Effects of Vehicle Mix on Crash Frequency and Crash Severity (2024) / Chapter Skim
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Pages 28-37
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28 4 22-49 DATA INPUT AND PREDICTION TOOL The "22_49 Data Input and Prediction Tool" developed in this project will allow users to create datasets for the facilities (segments or intersections) by inputting roadway and intersection information.
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29 Figure 4.1 "Segment Input" Tab Figure 4.2 Selection of Segment Facility Type
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30 After adding all the information and selecting facility type, users can generate the dataset including predictions with and without calibration by clicking on the "Input Data" from the Segment Input tab (Figure 4.3)
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31 Figure 4.4 Segment Data Input Error Figure 4.5 "Segment Output" Tab Showing Input Data
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32 Figure 4.6 "Segment Output" Tab Showing Predictions The users can clear the outputs by clicking "Clear Data" and can use the tool for a new segment (see Figure 4.7)
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33 Figure 4.7 Clearing the Segment Output 4.3 Intersection Data Input and Prediction The users can insert the information for an intersection by using "Intersection Input" tab of the tool (Figure 4.8)
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34 Figure 4.8 "Intersection Input" Tab Figure 4.9 Selection of Intersection Facility Type After adding all the information and selecting facility type, the users can generate the dataset including predictions with and without calibration over an expected period by clicking on the "Input Data" from the Intersection Input tab (Figure 4.10)
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35 Figure 4.10 Generating Intersection Dataset and Prediction The users should also note that the values of AADT and speed limit should be integers. In addition, any variable values outside the ranges of respective facilities will show error messages.
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36 Figure 4.12 "Intersection Output" Tab Showing Data Figure 4.13 "Intersection Output" Tab Showing Predictions
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37 Figure 4.14 Clearing the Intersection Input Data
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