A brief overview of navigation and use of the Crash Data Dashboard for the Georgia Department of Transportation.
The GDOT Crash Data Dashboard provides crash and vehicle data from crashes that occurred on Georgia’s public roads. This dashboard provides data visualizations, crash mapping, and easy-to-use filtering, which allows you to find the crash data for your city, county, or region. Additionally, crash type filters can help find specific crash types, like pedestrian or bicycle involved, distracted driver related, and more.
How to Navigate a Dashboard
The Crash Data Dashboard is composed of three main areas: The search bar, the filter sidebar, and the Metrics.
(The Crash Data Dashboard with the Search Bar (Green), Filter Sidebar (Blue), and Metrics (Orange) Highlighted.)
At the top of the Dashboard is the search bar. The search bar serves two main functions: it displays the current filters that are applied to the Dashboard, and it allows users to search for additional filters to apply to the Dashboard.
When you open the Dashboard, there is automatically a date range filter applied. This can be modified by clicking on the date range, and selecting a new date for the filter.
Any time a new filter is added, either through the Search Bar, the Filter Sidebar, or by clicking on a chart, it will be displayed in the Search Bar.
Any filter can be modified by clicking on any part of the filter. In the example below, I am changing the year range from 2014 - 2019, to 2016 - 2019.
(Changing the Year range from 2014 - 2019, to 2016 - 2019 in the Who Tab of the Dashboard)
Any filter can be removed by clicking on the X next to the filter.
The filter bar will remain persistent across a Dashboard, meaning if you apply a filter, you can navigate between tabs in that dashboard without having to reset your filters each time.
Note that filters are reset each time a new Dashboard is opened.
The Filter Sidebar contains many of the most frequently used filters available in easy-to-use dropdown menus. To apply a filter from the sidebar, simply click on the dropdown menu, and select the filter from the list. You can either scroll through the list and select the option, or begin typing to easily find what you are looking for.
In the example below, I am adding a city filter to display only the information for the city of Savannah.
(Selecting the City of Savannah from the Filter Sidebar in the When Tab of the Dashboard.)
The Metrics section of a Dashboard displays the data in a chart, graph, or metric. Each component of the Dashboard updates automatically to reflect any filters that are applied to the Dashboard. When you first open a Dashboard, only a date-range filter is applied, as well as a filter to remove all non-traffic crashes, so you are viewing the crash data for the entire state of Georgia, in the specified date range.
(The Where-Map View Tab of the Dashboard with the default year filters applied.)
When a location filter is applied, each metric updates to reflect the newly applied filter. In the example below, I am adding a location filter for Bibb County to the dashboard. Notice that the same metrics are present in both images, only the data has updated to reflect the filter change.
(Adding the Bibb County filter to the Where-Map View Tab of the Dashboard)
Additionally, most of the charts in a Dashboard can serve as interactive filters. By clicking on an element of a chart, you can apply the selected element as a filter to a chart. In the example below, I am clicking on the Gwinnett County partition, and it is applied to the entire Dashboard as a filter. Notice the color change in the selected element of the chart, as well as the additional filter in the search bar at the top of the screen.
Clicking on the same element again will remove the filter.
(Selecting and deselecting the Gwinnett County partition, from the Where Tab of the Dashboard)
Most dashboards contain different tabs of data, users can navigate between tabs of data by clicking on the tab, located just beneath the search bar. Switching tabs will not impact any filters you may have applied. It will only change the charts that are displayed in the metrics section of the Dashboard.
(Navigating between the Who And When Tabs of the Dashboard)
Additional filters can be added using the search bar by clicking on the Add Filter button, and typing to search for a filter. In the example below, I am adding a filter to only display crashes in which Younger Drivers were involved by typing the word Young into the filter bar, and selecting Young Driver Related from the dropdown, and selecting True.
(Searching for, and selecting the Young Driver Related filter to the When Tab of the Dashboard.)