Abstract
Platoon characteristics were introduced to measure service quality on multi-lane highway. The data used were collected from 18 locations on Tomei expressway. Due to the lack of study on platoon behavior on multi-lane highway, new platoon criteria and platoon behavior were investigated. Critical Headway was determined by relative speed method and exponential model. Platoon characteristics were explained by platoon rate, platoon size and percent of followers. New levels of service criteria, which based on road users points of view was proposed based on platoon parameters.
