Abstract: A tire tread for a heavy-duty vehicle which when new, has a maximum thickness of material to be worn away during running, a tread surface, side faces, a middle region (RM), this tread provided with tread pattern elements having channels, sipes, radial openings and blocking devices, the channels arranged in the tread and connected to the tread surface by radial openings arranged alternating with the blocking devices along the channels, where the tread is devoid of a circumferential groove, the channels arranged below the tread surface when the tread is new, the channels are transverse channels and connect RM to the side faces; each channel connecting the middle region to a side face has a direction change between RM and the side face; and maximum longitudinal distance between points of a transverse channel furthest apart in longitudinal direction is between 10% and 50% of the width of the tread (Lbdr).