1. Business Intelligence (BI) Data Analysis Software
Crash Analysis Using
Business Intelligence (BI) Data Analysis Software
2019 WesternITE Annual Meeting Presented by Yung Koprowski, PE, PTOE, RSP

2. Crash Analysis
The main purpose of crash analysis is to improve safety by identifying crash patterns, mitigating crash severity, and reducing the number of crashes by adopting suitable countermeasures.
The City of Peoria, Arizona desired a tool that would help staff respond quickly and confidently to requests from management and residents.

3. Arizona Motor Vehicle Crash Data
Columns of Data
Incident – 75
Person – 45
Unit – 66
Arizona Motor Vehicle Crash Data

4. Existing Crash Data Acquisition
Arizona Department of Transportation Crash Records Section compiles and maintain a database of all crashes occurring within the state
Incident, Person, and Unit .csv file obtained annually each summer for the previous year of data
Number Codes
Leading, Inner, and Trailing Spaces, misspelled street names

5. Crash Analysis Drawbacks
MAG RTSIMS Tool – Exported Report
Crash Analysis Drawbacks
Accuracy
MAG RTSIMS Tool – Query Exported to Excel
Formatting
Crash Analysis Tool Vendors
Manual Pivot Table Queries in Excel & Charts
Antiquated, Complex, $$
Time

6. Business Intelligence (BI) Software
Suite of tools designed to source, sort, consolidate, analyze and present complex data into digestible reports for insights
Leverages big data and cloud-computing to simplify complex data analysis
Easy to deploy, use and integrate with existing systems
Standalone applications or part of an enterprise suite

7. Building the Power BI Report – Connect, Prep, and Transform the Data
Relationships
Connected the Excel files for the Incident, Person, and Unit crash data.
Created a relationship between Incident, Person, and Unit through the “Incident ID” common to each.
Applied over 140 steps to de-code attributes, correct data, and add new sorting columns.
Code  Text
New Columns

8. Building the Power BI Report – Create Interactive Report
Hundreds of modern data visuals from Microsoft and partners
Drag-and-drop canvas
Design the report with theming, formatting, and layout tools
From Power BI Desktop published to Power BI Service (web)

10. Yung Koprowski, PE, PTOE, RSP
Chris Lemka, PE
City Traffic Engineer
City of Peoria
Yung Koprowski, PE, PTOE, RSP
Principal
Y2K Engineering, LLC.