FIELD: transport engineering. SUBSTANCE: invention relates to road vehicle directing systems using rollers. Proposed system has guide unit consisting of two guide balancers 2 and 3 exposed to vertical load and pairing force, each equipped with one inclined roller 12, 13 in state of forced rolling at least along one guide track rail 16. Limiting-and-holding module 47 arranged behind is designed for limiting side reach of axle 8 to tolerable value. Module is made in form of unit providing running along guide rail, turning on axle 8 and limited side displacement. Front guide unit and limiting-and-holding module 47 are connected by sides with axle from each side of axle by means of temporary side locking device 43, 44 with control of change of state. EFFECT: provision of limited reach of axle to maximum tolerable value in case of loss of adhesion of tires with road. 17 cl, 20 dwg
