Safe-following distances based on the car-following model

In Thailand there are more than 100,000 traffic accidents resulting in approximately 12,000 deaths per year. Regardless of which formula one uses to compute the monetary loss and the physiological and psychological stress due to these accidents, the true cost to society is so great that it defies comprehension. Even though there is no specific statistic in Thailand, it is thought that the rear-end collision is the most common type of road accident. Therefore, the aim of this research is to mitigate or reduce the severity and the number of road accidents, especially rear-end collisions by introducing a safe-following distance concept. This research developed a methodology to estimate the safe car-following distance for a speed range from 80 to 120 km/h, speeds commonly observed on the national highways of Thailand. In order to bring the findings of this research into practice, the "dot" tailgating treatment marking has been developed as a safety countermeasure for assisting drivers in establishing the recommended following distance.


  • English

Media Info

  • Pagination: 19p
  • Monograph Title: International Seminar on Intelligent Transport Systems (ITS) in Road Network Operations, August 14th to August 16th, 2006, Kuala Lumpur, Malaysia

Subject/Index Terms

Filing Info

  • Accession Number: 01386200
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 22 2012 8:57PM