The Incident Timeline Tool provides for the visualization of detailed real-time and historic traffic management center incident data. Large incident data sets can be viewed in a graphical, one-screen overview. Line color, thickness, and length work together to convey data that would normally take multiple pages and large tables to understand. The mouse can be used to scroll over elements in the timeline to glean additional information. The Incident Timeline Tool reduces the chance of missing critical information, enables the user to correlate events, and quickens the time needed to comprehend the many simultaneous events that occur or occurred during the management of one or more incidents.