Perception and Reaction Time of Tailgating Drivers from Naturalistic Driving Data

This paper presents a microscopic study of tailgating behavior of drivers, particularly the perception and reaction time of following drivers as they mimic the speed of lead vehicles in tailgating situations. Tailgating is a complex phenomenon involving human behavior and kinematics of the vehicle. It is equally challenging to collect naturalistic driving data in tailgating situations. This paper reports on an empirical study in which a sophisticated data acquisition system was developed using an instrumented vehicle to collect naturalistic driving data. Data were collected on freeways in Maryland during times of moderate traffic flow by driving in a naturalistic way that was benign to the surrounding traffic. We present a model to detect tailgating based on stopping distances of the lead and following vehicles considering the following distance, speeds, friction and reaction time. We also developed a model to calculate the root mean square error between the lead and following speeds, incorporating a time lag in the lead speed. This time lag includes the perception and reaction time of a driver and acceleration or deceleration time. This result can contribute directly to models and parameter estimates in microscopic simulators for tailgating drivers and for the development of driver safety assistance systems in the automotive industry.


  • English

Media Info

  • Media Type: DVD
  • Features: Figures; Photos; References; Tables;
  • Pagination: 15p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01152079
  • Record Type: Publication
  • Report/Paper Numbers: 10-3243
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 11:36AM