In the 5th wheel of tractor-semitrailer comprising the articulated vehicle, if the traction difference of the tire is generated, the trailer-swing occurs from side to side and the tractor jackknifing occurs. In addition, because the articulated vehicle transports the bulky goods or the chemicals-related dangerous substance mainly and the vehicle is big, it induces the big accident when the jackknifing accident is generated. The driver's caution and safe driving are essential for the prevention of this big accident. However, if the movement of the tractor-semitrailer can be detected by using GPS, GPS technology is considered to prevent the accident instead of the driver. For this purpose, Jackknifing accident is reenacted by TruckSim®, that is truck-related software, and then the movement of tractor-semitrailer is analyzed. Therefore, this paper deals with a method detecting an accident related with articulated vehicles by GPS.

Keywords: GPS, Articulated vehicle, Jackknifing, Trailer-swing, TruckSim