Visualization of large-scale trajectory datasets.

Vehicle trajectory datasets can be used to study several aspects of traffic. With the ever-increasing technical capabilities instruments are providing more-and-more information which should be analyzed and interpreted. This paper discusses different problems and possible solutions for the visualization of these new, large-scale and high-resolution (special and temporal) datasets (in the order of several miles, multiple hours, and several hundreds of millions of datapoints). It introduces two tools, to efficiently generate a time-space diagram and show an animated overhead-view of the vehicles and the road. The presented solutions are developed for the recently opened I-24 MOTION testbed, but the methods and tools can be utilized for other large datasets.