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I-24 Motion
I-24 Motion I-24 Motion

Testbed for traffic management and automated vehicle technologies
Located on 4 miles of Interstate 24 in Middle Tennessee
Data sharing begins in 2023

View from I-24 cameras

About I-24 MOTION

The I-24 Mobility Technology Interstate Observation Network (MOTION) is a four-mile section of I-24 in the Nashville-Davidson County Metropolitan area with 294 ultra-high definition cameras. Those images are converted into a digital model of how every vehicle behaves with unparalleled detail. This is all done anonymously using Artificial Intelligence (AI) trajectory algorithms developed by Vanderbilt University.

Vehicle trajectory data allows us to uncover new insights into how traffic flow influences individual vehicle behavior. This groundbreaking understanding of traffic is more important than ever due to the increasing automation capability of individual vehicles, which are beginning to influence traffic flow through their interactions with conventional vehicles. By unlocking a new understanding of how these vehicles influence traffic, vehicle and infrastructure design can be optimized to reduce traffic concerns in the future to improve safety, air quality, and fuel efficiency.

The purpose of I-24 MOTION is to provide an environment for testing advanced traffic management and automated vehicle technologies in real freeway traffic. Automakers and suppliers are investing billions of dollars in adding connectivity and automation features to vehicles, forever changing safety and mobility. These technologies are often developed in the laboratory or closed-course settings. Testing in traffic captures the variability of real-world conditions and human behavior. Complementary congestion management technologies are being installed by TDOT along this same section of interstate as part of the I-24 SMART Corridor project. Read more about the I-24 MOTION project from TDOT.

Using the information gathered on this testbed, I-24 MOTION will provide insights to allow the industry to build better products and allow TDOT to better understand how to make the most out of these products for managing infrastructure assets. The first testbed user is the U.S. Department of Energy’s sponsored research with the CIRCLES Consortium, which is studying the possibility of smoothing traffic by introducing vehicles equipped with advanced driver-assist systems.

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Timeline

  • 2018testbed needs and strategy established
  • 2019camera technology pilot
  • 2020construction of 3-pole ”validation system” to study design and feasibility
  • 2021design and build begins for full system
  • Sept. 30, 2022construction completes and testbed becomes operational
  • July 2022installation of Vanderbilt, TDOT 'I-24 MOTION' cameras nears completion
  • Nov. 2022 – construction completes and testbed becomes operational
  • Nov. 14-18, 2022 – CIRCLES experiment on I-24 MOTION
  • Infrastructure
  • Data Processing

News & Events

I-24 MOTION honored at Southern District ITE meeting

The I-24 MOTION team received the Traffic Engineering Special Project Award for 2023 from Southern District ITE at their meeting in March. The meeting was held in Savannah, GA, where Will Barbour and Matt D'Angelo were in attendance to present the project in a special lectern session and poster session.

More News

Publications

  • I-24 MOTION: An instrument for freeway traffic science
  • Automatic vehicle trajectory data reconstruction at scale
  • I-24 Open Road Testbed
More Publications

Videos

  • Installation of Vanderbilt TDOT I-24 MOTION cameras nears completion
  • I24 MOTION validation phase construction timelapse (zoom)
  • I24 MOTION 18-camera composite (v1)
  • DJI 0007 cut
Project Partners
  • TN TDO Logo
  • Vanderbilt University Logo
  • Gresham Smith Logo
Research Funding
  • National Science Foundation logo
  • Department Of Transportation USA logo
  • Department Of Energy USA logo
Contact Us

For questions about the project please contact:

General Contact Email:info@i24motion.org
Primary Contact:
Other Contacts:
Lee J. Smith, P.E. Interim Traffic Operations Division Director Email: Lee.J.Smith@tn.gov
Meredith Cebelak Ph.D., P.E. Tennessee TSM&O Department Leader Gresham Smith Email: meredith.cebelak@greshamsmith.com
Dan Work, PhD Associate Professor, Civil & Environmental Engineering Vanderbilt University Email: Dan.work@vanderbilt.edu

This material is based upon work supported by the U.S. National Science Foundation, U.S. Department of Transportation, and U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE). The views expressed herein do not necessarily represent the views of the U.S. National Science Foundation, U.S. Department of Transportation, U.S. Department of Energy, or the United States Government.

©2023 I-24 Motion