Estimating the Impacts of Automatic Emergency Braking (AEB) Technology on Traffic Energy and Emissions

As one of the key advances in vehicle safety, Automatic Emergency Braking (AEB) has been introduced in the U.S. and the number of vehicles equipped with this technology has increased significantly in recent years. Most of existing studies have evaluated this technology at the individual vehicle level or focused on its safety performance. In this study, the authors tried to quantify its effectiveness on the energy consumption and tailpipe emissions. Towards this end, the authors: (1) performed literature review on AEB technology; (2) built a database including real-world traffic state measurements, traffic accident records, roadway geometry, and weather information; (3) developed a data-driven method to estimate the environmental impacts caused by the accidents that could be mitigated by AEB; and (4) conducted case study to show the efficacy of the proposed method. The results showed that the AEB technology may improve energy economy by up to 34.6% and reduce pollutant emissions (e.g., CO, HC, NOx and PM) by as much as 22.5% if the selected accidents could be avoided.

• Record URL:
  https://www.metrans.org/assets/research/psr-19-26a_wu_final-report.pdf
• 
• Summary URL:
  https://www.metrans.org/research/-estimating-the-impacts-of-automatic-emergency-braking-aeb-technology-on-traffic-energy-and-emissions
• Summary URL:
  https://rosap.ntl.bts.gov/view/dot/67970
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/58487
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  Pacific Southwest Region University Transportation Center

  University of Southern California
  Los Angeles, CA  United States  90089

  METRANS Transportation Center

  University of Southern California
  Los Angeles, CA  United States  90089-0626

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Authors:
  • Wu, Guoyuan
  • 0000-0001-6707-6366
  • Liao, Xishun
  • 0000-0002-7219-8971
  • Yang, Lan
  • 0000-0002-0582-0644
  • Barth, Matthew J
  • 0000-0002-4735-5859
• Publication Date: 2021-6-30

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; Maps; Photos; References; Tables;
• Pagination: 33p

Subject/Index Terms

• TRT Terms: Automatic braking; Case studies; Energy consumption; Environmental impacts; Pollutants; Traffic crashes
• Subject Areas: Environment; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 01785226
• Record Type: Publication
• Report/Paper Numbers: PSR-MT-19-26-a
• Contract Numbers: 69A3551747109
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: Oct 22 2021 9:18AM