WisDOT Crash Comparison Dashboard

Shiny
Data Viz
API
This is a Shiny dashboard that compares crashes by quarter within a selected County or Municipality. This analysis was previously done manually in Excel, needing to find the number of crashes for each crash flag/type for each quarter. This dashboard fully displays all this info via a series of bar charts. One can see both absolute change and the percent change in the number of crashes.
Author
Affiliation

Jacci Ziebert

WisDOT

Published

October 1, 2022

Screenshot of the WisDOT Crash Comparison Dashboard.

View the Dashboard

What I learned

Knowing this dashboard would be viewed on a variety of screen sizes, I used dynamic font sizes (i.e. 1.2em) as opposed to static font sizes (i.e. 12pt). I also wrote CSS as to make printing of the entire dashboard possible on two pages.

Highlighted packages

The dashboard uses dashboardthemes, ggplot2 and ggtext using the golem framework.