Influence of Road Configuration and Winter Road Condition on the Driver’s Interaction with an Adaptive Cruise Control System

A field experiment was conducted in winter 2017-2018 using an automated vehicle equipped with adaptive cruise control (ACC), a vehicle for measuring lateral friction on the snowy and icy road surface using the Real-Time Traction Tool-Curve and a meteorological measurement vehicle, where various winter road conditions were recorded in Hokkaido, Japan. On an experimental route, the authors determined where the driver overrode the ACC and decelerated, an action the authors herein call a “driver interaction”. The study used an ACC-equipped vehicle to investigate how the road surface condition and the road configuration affect the likelihood of driver interaction in winter. The experimental route passed through two types of road: a nationally administered road, and a regionally administered road. Driver interactions were found to occur only rarely on the nationally administered road. Based on the results of this study, drivers are expected to be able to use an automated vehicle equipped with an ACC system in winter on roads whose geometric road design is on par with that of nationally administered roads, except under slippery road conditions on curves and slope sections.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee AH010 Standing Committee on Surface Transportation Weather.
  • Corporate Authors:

    Transportation Research Board

  • Authors:
    • Hagiwara, Toru
    • Yuki, Kato
    • Kishi, Kunihiro
    • Okada, Minoru
    • Naito, Toshiyuki
    • Munehiro, Kazunori
    • Nagata, Yasuhiro
  • Conference:
  • Date: 2019


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 19p

Subject/Index Terms

Filing Info

  • Accession Number: 01697689
  • Record Type: Publication
  • Report/Paper Numbers: 19-05239
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 7 2018 9:34AM