A tire for a heavy goods vehicle, comprising a tread which is intended to come into contact with the ground via a travel surface, having a width W and comprising an arrangement of blocks in pairs which are separated by cut-outs, - the arrangement of blocks being constituted, in a circumferential direction (XX') of the tire, by a circumferential distribution of rows of blocks in the form of a chevron so that all the chevrons are orientated in the travel direction (XX') of the tire and have their respective tips, which are positioned in the same circumferential plane, perpendicular to the rotation axis of the tire, - each row of blocks in the form of a chevron extending from one edge of the tread to the other and being constituted in an axial direction (YY') of the tire by a juxtaposition of blocks, - the blocks of the same row of blocks in the form of a chevron being separated in pairs by a circumferential cut-out which has a mean line (Lc) which forms, with the circumferential direction (XX'), a mean angle less than 45°, two consecutive rows of blocks in the form of a chevron being separated by a transverse cut-out in the form of a chevron which extends continuously from one edge of the tread to the other so that the leading or trailing edges of the blocks which delimit, in the travel surface, the transverse cut-out in the form of a chevron are positioned in the same line, any transverse cut-out in the form of a chevron having a mean line (Lt) which is constituted by two branches (Lt1, Lt2) which each form, with the axial direction (YY'), a mean angle (B1, B2) at a minimum of 15° and at a maximum of 55°, characterized in that any transverse cut-out in the form of a chevron has a maximum depth D2 and a mean width W2 so that the ratio W2/D2 is at least 20%, preferably at least 30% and in that any transverse cut-out in the form of a chevron comprises a protuberance at the base of the cut-out, in the region of the tip of the chevron-like shape. - the arrangement of blocks being constituted, in a circumferential direction (XX') of the tire, by a circumferential distribution of rows of blocks in the form of a chevron so that all the chevrons are orientated in the travel direction (XX') of the tire and have their respective tips, which are positioned in the same circumferential plane, perpendicular to the rotation axis of the tire, - each row of blocks in the form of a chevron extending from one edge of the tread to the other and being constituted in an axial direction (YY') of the tire by a juxtaposition of blocks, - the blocks of the same row of blocks in the form of a chevron being separated in pairs by a circumferential cut-out which has a mean line (Lc) which forms, with the circumferential direction (XX'), a mean angle less than 45°, two consecutive rows of blocks in the form of a chevron being separated by a transverse cut-out in the form of a chevron which extends continuously from one edge of the tread to the other so that the leading or trailing edges of the blocks which delimit, in the travel surface, the transverse cut-out in the form of a chevron are positioned in the same line, any transverse cut-out in the form of a chevron having a mean line (Lt) which is constituted by two branches (Lt1, Lt2) which each form, with the axial direction (YY'), a mean angle (B1, B2) at a minimum of 15° and at a maximum of 55°, characterized in that any transverse cut-out in the form of a chevron has a maximum depth D2 and a mean width W2 so that the ratio W2/D2 is at least 20%, preferably at least 30% and in that any transverse cut-out in the form of a chevron comprises a protuberance at the base of the cut-out, in the region of the tip of the chevron-like shape.