I-24 MOTION is an open-road traffic science instrument and testbed located on Interstate 24 in southeast Nashville, TN, USA. The system uses 294 cameras and a cluster of data processing hardware and software to produce anonymized trajectories for all vehicles on the roadway. This repository maintains versioned documentation for I-24 MOTION data, which is free to download from the project website.
As the data processing for the system improves, new data will be assigned an updated version number. Tagged datasets (e.g., the initial "INCEPTION" dataset released by the project) may be re-processed and updated to new data versions. While backwards compatibility of the data, documentation, and software tools may not be maintained, prior versions of documentation and tools will be available in this repository and others in the I-24 MOTION Github Organization. As a general principle, this documentation will receive an updated version number only when compatibility or consistency is broken across data versions. Minor clarifications or bug fixes may be made to the documentation without a version change, but will be reflected in the commit log.
We encourage data users to help us track data improvements, requests, questions, issues, and oddities at our I-24 MOTION Improvement Tracker repository.
This documentation and the data it references are brought to you by the I-24 MOTION team at Vanderbilt University, in addition to project partners at the Tennessee Department of Transportation and Gresham Smith. The full team listing can be found here. Data and software contributions were principally made, and continue, by (in alphabetical order) William Barbour, Derek Gloudemans, Junyi Ji, Yanbing Wang, and Gergely Zachár. Many others contributed in countless ways to make the project possible. Please refer to the project website if you would like to get connected with the team.
By acquiring and using the I-24 MOTION data, you agree to the following data use agreement (updated 19 September 2023).
- You are free to use the data in academic and commercial work.
- The dataset contains anonymous trajectories. Any activities to re-identify individuals in the dataset or activities that may cause harm to individuals in the dataset are prohibited.
- When you use I-24 MOTION data in published academic work, you are required to include the following citation. This allows us to aggregate statistics on the data use in publications:
Gloudemans, D., Wang, Y., Ji, J., Zachar, G., Barbour, W., Hall, E., Cebelak, M., Smith, L. and Work, D.B., 2023. I-24 MOTION: An instrument for freeway traffic science. Transportation Research Part C: Emerging Technologies, 155, p.104311.
The bibtex version of the reference is:
@article{gloudemans202324,
title={I-24 MOTION: An instrument for freeway traffic science},
author={Gloudemans, Derek and Wang, Yanbing and Ji, Junyi and Zachar, Gergely and Barbour, William and Hall, Eric and Cebelak, Meredith and Smith, Lee and Work, Daniel B},
journal={Transportation Research Part C: Emerging Technologies},
volume={155},
pages={104311},
year={2023},
publisher={Elsevier}
}
- You are free to share the data and create derivative products as long as you maintain the terms above.
- The data is provided “As is.” We make no other warranties, express or implied, and hereby disclaim all implied warranties, including any warranty of merchantability and warranty of fitness for a particular purpose.