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Effect of Surrounding Traffic Characteristics on Lane Changing Behavior

J. Transp. Eng. 136, 973 (2010); doi:10.1061/(ASCE)TE.1943-5436.0000165 (13 pages)

Sara Moridpour1, Geoff Rose2, and Majid Sarvi3

1Lecturer, School of Civil, Environmental and Chemical Engineering, RMIT University, Melbourne, VIC, Australia; formerly, Institute of Transport Studies (ITS), Dept. of Civil Engineering, Monash Univ., Victoria, Australia (corresponding author). E-mail: sara.moridpour@rmit.edu.au
2Associate Professor, Institute of Transport Studies (ITS), Dept. of Civil Engineering, Monash Univ., Victoria, Australia. E-mail: Geoff.Rose@eng.monash.edu.au
3Senior Lecturer, Institute of Transport Studies (ITS), Dept. of Civil Engineering, Monash Univ., Victoria, Australia. E-mail: Majid.Sarvi@eng.monash.edu.au

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(Submitted 22 September 2009; accepted 20 April 2010; posted ahead of print 26 April 2010)

Lane changing maneuvers could have a substantial influence on traffic flow characteristics as a result of their interfering effect on surrounding vehicles. The interference effect of lane changing is more pronounced when heavy vehicles change lanes compared to when passenger cars undertake the same maneuver. This is due to the physical effects that the heavy vehicles impose on surrounding traffic. This paper investigates and compares the traffic flow characteristics which influence the lane changing behavior of heavy vehicle and passenger car drivers on freeways under heavy traffic conditions. A trajectory data set comprising 28 heavy vehicle and 28 passenger car lane changing maneuvers is analyzed in this study. The results suggest a substantial difference exists between the traffic characteristics influencing the lane changing behavior of heavy vehicle and passenger car drivers. Heavy vehicles’ speed changes little during a lane changing maneuver. Heavy vehicle drivers mainly move into the slower lanes to prevent obstructing the fast moving vehicles which approach from the rear. However, passenger car drivers increase their speed according to the speeds of the lead and lag vehicles in the target lane. They more commonly move into the faster lanes to gain speed advantages.

© 2010 ASCE

Article Outline

  1. Introduction
  2. Trajectory Data Set
  3. Lane Changing Maneuvers
    1. Motivation to Change Lanes
  4. Speeds of Surrounding Vehicles in the Current Lane
  5. Space Gaps of Surrounding Vehicles in the Current Lane and Target Lane
    1. Selection of the Target Lane
  6. Speeds of Surrounding Vehicles in the Current Lane, the Target Lane, and the Alternative Lane
  7. Speed Differences in the Current Lane, the Target Lane, and the Alternative Lane
    1. Lane Changing Execution
  8. Speed Profile of Subject Vehicle and Surrounding Vehicles during the Lane Changing Maneuver
  9. Space Gap Profiles in the Current Lane and the Target Lane during the Lane Changing Maneuver
  10. Summary and Conclusions

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PUBLICATION DATA

ISSN:

0733-947X (print)  
1943-5436 (online)

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