Infrastructure and vehicular communications: From Dedicated Short-Range Communications to Cellular Vehicle-to-Everything

This report aims to support the Tennessee Department of Transportation (TNDOT)'s decisions about vehicle and infrastructure communications technologies. The transition from Dedicated Short-Range Communication (DSRC) Vehicle to Everything (V2X) to Cellular Vehicle to Everything (C-V2X) is explored using United States Department of Transportation guidance on relevant issues and presenting the results of experimentation in Tennessee and the potential pros and cons. DSRC V2X technology has been planned at traffic signals in Tennessee, e.g., 152 Roadside Units (RSUs) were planned by TNDOT using DSRC V2X and Bluetooth combination units in the I-24 smart corridor. Similarly, many pilot programs and testbeds around the nation have deployed DSRC V2X technology and are now impacted by the Federal Communication Commission’s ruling on opening safety band. The implication is that existing DSRC V2X deployments (and future deployments) should migrate to C‐V2X. Notably, dual‐mode RSUs are available along with LTE C‐V2X. The transition can be done by working with vendors, but surely this involves more than swapping DSRC V2X devices with LTE C‐V2X devices. Complicating the migration to C-V2X is TNDOT’s role in traffic signal operations and maintenance, which is limited to funding and designing/construction of traffic signals, but local agencies operate and maintain signals. Hence local agencies will work with TNDOT to operate and maintain C-V2X technology. Moreover, C-V2X technologies are not widely tested-interference by unlicensed devices and channel congestion can adversely affect safety-critical applications. Given the substantial uncertainties in transitioning to these technologies, TNDOT’s discussions with infrastructure owner operators (IOOs) about the operation and maintenance of C-V2X may have to wait for the resolution of issues, while TNDOT can invest in experimentation with dual-mode devices. Recommendations are provided about dual-mode devices, connected autonomous vehicle (CAV) data, and needed research and testing.

• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/73415
• Supplemental Notes:
  • The project has developed a series of five reports that support intelligent mobility strategies in Tennessee. This is report 3 of 5.
• Corporate Authors:

  University of Tennessee, Knoxville

  Department of Civil and Environmental Engineering
  John D. Tickle Building
  Knoxville, TN  United States  37886

  University of Tennessee, Chattanooga

  615 McCallie Avenue
  Chattanooga, TN  United States  37403

  Tennessee Department of Transportation

  Long Range Planning Research Office
  Nashville, TN  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Khattak, Asad
  • Harris, Austin
  • Sartipi, Mina
  • Mahdinia, Iman
  • 0000-0003-1199-7398
  • Moradloo, Nastaran
  • SafariTaherkhani, Mohammad
• Publication Date: 2022-5

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Glossary; Illustrations; Photos; References; Tables;
• Pagination: 50p

Subject/Index Terms

• TRT Terms: Dedicated short range communications; Infrastructure; Mobile communication systems; Vehicle to infrastructure communications; Vehicle to vehicle communications
• Geographic Terms: Tennessee
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Vehicles and Equipment;

Filing Info

• Accession Number: 01909948
• Record Type: Publication
• Report/Paper Numbers: RES2019-07, R011313595
• Files: NTL, TRIS, USDOT, STATEDOT
• Created Date: Feb 27 2024 10:09AM