Traction belt of the vehicle is formed by a flexible belt or it is composed from the segments (1 ) connected by pins into the closed belt, whereby it has a touch surface (3) designed for the transfer of the traction forces from the undercarriage to the ground. On the touch surface (3) there is a layer (2) with the abrasive grains with the grit size larger than 200 pm, preferably the grit size is more than 400 pm, especially preferably the grit size is more than 600 pm. Typical sand papers or abrasive clothes from the aluminum oxide and/or from silicon carbide and/or from zircon and/or from ceramic can be used. Abrasive layer (2) is glued to the segment (1 ) with the touch surface (3), or it is mechanically attached by means of flanges, clips, Velcro fasteners and so on. The segment (1 ) can contain a magnet which draws the touch surface (3) to the ground. The traction belt is advantageously used for the undercarriage of the automatized and/or remotely controlled trolley designed for the cleaning of the metal bottom of the tank for petroleum substances, for the operation on the oil platform or in the oil tank, or in the technological devices refining the petroleum products.