Feasibility of Real-Time Infrastructure-Driven Intervention for Improving Pedestrian Safety

The long-term objective of this research is to improve VRU safety in all neighborhoods in an inclusive and equitable way. For this project, the author leverages the existing infrastructure in Chattanooga, TN (MLK Smart Corridor) to explore various wireless communication technologies for generating critical traffic notifications for both connected and nonconnected VRUs and vehicles in real time. More specifically, she implemented Software-Defined Radio (SDR)-based technologies on UTC campus and then evaluated them at two intersections within the Chattanooga Smart City testbed, Houston and Douglas. The author employed two laptops and two SDRs to transmit and receive the signals. The receiver assumes the role of a pedestrian traversing the intersection with a laptop, SDR and an external GPS. Data collection is conducted for both LTE and BLE at each intersection. The experiments and analysis effectively characterize the latency and reliability profiles of LTE and BLE in an urban environment through hexagonal binning visualizations and quantitative performance metrics. This furnishes critical insights into the real-world capabilities of these salient IoT protocols.

• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/73419
• Corporate Authors:

  University of Tennessee, Chattanooga

  615 McCallie Avenue
  Chattanooga, TN  United States  37403

  Tennessee Department of Transportation

  Nashville, TN  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Sartipi, Mina
  • 0000-0002-6709-5046
• Publication Date: 2023-10

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final report
• Features: Appendices; Figures; Maps; Photos; References; Tables;
• Pagination: 60p

Subject/Index Terms

• TRT Terms: Infrastructure; Intersections; Pedestrian safety; Pedestrian vehicle interface; Vulnerable road users; Wireless communication systems
• Geographic Terms: Chattanooga (Tennessee)
• Subject Areas: Data and Information Technology; Highways; Pedestrians and Bicyclists; Safety and Human Factors;

Filing Info

• Accession Number: 01911568
• Record Type: Publication
• Report/Paper Numbers: RES-2023-25
• Contract Numbers: RES-2023-25
• Files: NTL, TRIS, USDOT, STATEDOT
• Created Date: Mar 11 2024 4:32PM