A Study of Motorcycle riding Characteristics on the wrong direction in Thailand

Motorcycles are commonly used as vehicles in Thailand and are also the main cause of traffic deaths. A motorcycle characteristic that causes an accident is riding on the wrong side of the road. The key parameters explaining this characteristic are speed and lateral position. In this study, the motorcycle speed is measured by a digital indicator while the lateral position is measured using white color tape, which is placed perpendicular to the motorcycle direction. The collected data shows that the speeds are between 6.59 and 21.49 km/h, and the lateral positions are between 0.52 and 0.96 m from the outermost lanes of the road. Moreover, the statistical analysis indicated that it seems most people riding on the wrong side of the road tend to ride slowly and stay as close to the edge of the footpath as possible. The results of this study could be potentially used for designing evasive maneuvers for autonomous vehicles.