road markings being adjustable as described above the distance of the torches 51 from the road markings m can be used to adjust and optimize the heat applied to the markings however the heating of the road markings m may be indirect for example by means depicted in fig5 and 6 where reference numerals similar to those of fig1 u2013 4 have been used but with the numeral u201c 1 u201d preceding as seen in fig5 and 6 the location and mode of operation of the brush 180 remains unchanged however the heating source 150 with torches 151 now corresponds with the brush 180 such that the heat is applied to the bristles 188 of the brush 180 the torches 151 are preferably at an angle to the bristles 188 as seen in fig5 this has the effect of improving the heat transfer to the bristles 188 as well as avoiding excessive heating of the hub of the brush 180 hence now it is the heated bristles 188 that heat the road markings m and together with rotation of the brush 180 remove the markings thus the only portion of the road r that is significantly heated is that portion contacted by the brush 180 u2014 presumably just the road markings m the heating source 150 is again displaceable by an arrangement comprising for example a pneumatic cylinder 152 a piston 154 and supporting rollers 158 and 160 for adjusting the amount of heat applied to the brush 180 examples of alternate arrangements for displacing the heating.