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 (P), 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 (A) 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 (L), 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 (P), 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 (A) 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 (L), 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. <EOS>