Sag Congestion

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Sag Congestion
Congestion Mitigation with V2X / Sag Congestion
General information
Project
Japan Japan’s Ministry of Land, Infrastructure, Transport, and Tourism

National Institute for Land and Infrastructure Management (NILIM)

From 2010 to N/A Active
Contact
Project Website
Hideyuki Kanoshima, NILIM/MLIT
[1]
NILIM/MLIT
Japan

Keypoints

  • Integrates ACC/CACC and V2X (5.8 GHz DSRC) to mitigate congestion at sags on expressways.
  • Encourages drivers to use the cruising lane, provides ACC-setting information with V2I, and uses CACC through V2V.
  • Partners include OEMs and expressway companies.
  • Demonstrations conducted in 2012-2013
  • Simulation suggests congestion reduction of up to 25% with 20% of vehicles participating

Outcomes

  • Identified the causes of traffic congestions at sags on expressways, and proposed the concept of congestion mitigation services with V2I and V2V.
  • Estimated congestion mitigation effects based on the results of field operational tests and simulations.
  • Conducted showcase demonstrations at the 20th ITS World Congress Tokyo 2013.
Example of applications

Related Projects

N/A

Partners

  • Toyota
  • Nissan
  • Honda
  • Mazda
  • Fuji Heavy Industries
  • NEXCO East/Central/West
  • Metropolitan Expressway Company

Budget / Funding

N/A

Keywords