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Excel Crash Injury Scorecard and 5-Star Rating 30 Cases

30 Chapters

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Build a Crash Injury Severity Scorecard in Excel

Create a structured Excel workbook that records crash incidents with injury severity levels and computes a composite injury score per incident using weighted severity counts.

SeverityScorecard

Design a 5-Star Rating Formula for Crash Injury Scores

Implement a nested IF and lookup-based formula that converts composite injury scores into a 1–5 star rating, ensuring thresholds are configurable in a separate parameter table.

Implementlookup-based

Validate Injury Score Inputs with Data Validation Rules

Apply Excel data validation to restrict injury severity entries to a predefined list and prevent invalid scores from corrupting the star rating calculation.

ValidateValidation

Create a Dynamic Star Rating Display Using Conditional Formatting

Use conditional formatting with icon sets or custom rules to visually display the 5-star rating directly in the scorecard table based on the computed rating value.

ConditionalFormatting

Summarize Crash Injury Scores by Vehicle Type with PivotTables

Build a PivotTable that aggregates average injury scores and star ratings by vehicle type, enabling comparison of crash outcomes across vehicle categories.

SummarizePivotTables

Calculate Weighted Injury Scores with SUMPRODUCT

Use SUMPRODUCT to compute a weighted injury score that accounts for different severity weights (e.g., minor, serious, fatal) in a single formula without helper columns.

CalculateWeighted

Build a Star Rating Distribution Chart

Create a histogram or bar chart that shows the count of incidents falling into each star rating category, using COUNTIFS to prepare the chart data.

Distributionhistogram

Implement a Lookup Table for Injury Severity Codes

Use VLOOKUP or INDEX-MATCH to map numeric injury severity codes to descriptive labels and weights, ensuring the scorecard remains maintainable when codes change.

ImplementSeverity

Handle Missing Injury Data with IFERROR and Default Ratings

Apply IFERROR and logical checks to assign a default star rating when injury data is incomplete, preventing formula errors from breaking the scorecard.

IFERRORincomplete

Create a Crash Injury Scorecard Dashboard with Slicers

Combine a PivotTable and PivotChart with slicers to build an interactive dashboard that filters injury scores and star ratings by crash location or date.

ScorecardDashboard

Rank Incidents by Injury Score Using RANK.EQ

Add a ranking column that orders incidents from most to least severe based on the composite injury score, using RANK.EQ with a dynamic range.

IncidentsRANK.EQ

Apply a 5-Star Rating Scale with Custom Number Formatting

Use custom number formatting to display the numeric star rating as filled star symbols (e.g., ★★★☆☆) without altering the underlying value.

Formattingaltering

Audit Star Rating Formulas with Trace Precedents and Evaluate Formula

Use Excel's formula auditing tools to trace how injury inputs flow into the star rating and identify circular references or broken links in the scorecard.

FormulasPrecedents

Build a Sensitivity Analysis Table for Star Rating Thresholds

Create a one-variable data table that shows how changing the star rating threshold values affects the distribution of ratings across all incidents.

SensitivityAnalysis

Calculate Injury Score Trends Over Time with AVERAGEIFS

Use AVERAGEIFS to compute monthly average injury scores and star ratings, then insert a line chart to visualize the trend over a 12-month period.

CalculateAVERAGEIFS

Create a Star Rating Matrix Using a PivotTable with Calculated Fields

Add a calculated field to a PivotTable that computes the star rating from summed injury scores, allowing dynamic rating aggregation by crash cause.

PivotTableCalculated

Protect the Scorecard Sheet While Allowing Data Entry

Apply worksheet protection that locks formula cells for star ratings and injury scores while leaving input cells editable, using cell locking and password protection.

ScorecardAllowing

Build a Data Entry Form with Form Controls for Injury Records

Insert combo boxes and spin buttons linked to cells to create a user-friendly form for entering injury severity counts, reducing manual entry errors.

Controlsuser-friendly

Use Conditional Formatting to Highlight Critical Star Ratings

Apply a formula-based conditional formatting rule that highlights incidents with a 1-star rating in red and 5-star in green, drawing attention to severe crashes.

ConditionalFormatting

Create a Star Rating Summary with COUNTIFS and Percentage Distribution

Use COUNTIFS to count incidents per star rating and compute the percentage of total for each rating, presenting results in a summary table.

COUNTIFSPercentage

Implement a Dynamic Named Range for Injury Score Data

Define a dynamic named range using OFFSET and COUNTA so that star rating formulas automatically expand when new crash records are added.

ImplementOFFSET

Build a What-If Analysis with Goal Seek for Star Rating Targets

Use Goal Seek to determine the injury score reduction needed to achieve a target star rating for a specific incident, demonstrating parameter adjustment.

What-IfAnalysis

Create a Crash Injury Scorecard Template with Input Validation and Error Messages

Design a reusable template that includes data validation with custom error messages and input messages to guide users when entering injury severity data.

ScorecardTemplate

Use Power Query to Import and Clean Crash Injury Data

Import a CSV of crash records into Power Query, remove duplicates, standardize injury severity codes, and load the cleaned data into the scorecard workbook.

Build a Star Rating Calculation with SWITCH for Multiple Severity Levels

Use the SWITCH function to assign star ratings based on multiple injury score ranges, replacing nested IFs for better readability and maintainability.

CalculationSWITCH

Create a PivotChart to Compare Star Ratings Across Crash Types

Build a clustered column PivotChart that displays the count of each star rating for different crash types (e.g., head-on, rear-end), enabling comparative analysis.

PivotChartclustered

Apply a 5-Star Rating Scale with a User-Defined Function in VBA

Write a simple VBA function that takes an injury score and returns a star rating string, then use it in the scorecard to automate rating assignment.

User-DefinedFunction

Perform a Data Quality Check on Injury Scores with Conditional Formulas

Use formulas to flag records where injury severity counts are negative or exceed total persons involved, ensuring data integrity before rating calculation.

ConditionalFormulas

Create a Star Rating Heat Map with Conditional Formatting Color Scales

Apply a 3-color scale to the star rating column to create a heat map that visually distinguishes low, medium, and high ratings across all incidents.

ConditionalFormatting

Build a Final Crash Injury Scorecard Report with Executive Summary

Combine the scorecard, star rating distribution, and key insights into a single printable report sheet with an executive summary that highlights overall injury severity and rating trends.

ScorecardExecutive