Unfortunately most of the over runs seem to happen at night, so painted markings are not really of much use. The only real way would be to extinguish the TWY lights leading onto to Delta past the B1 turn, but that would mean either turning the lights back on when they are required, or forbidding movement in (only) that direction at night on that section of TWY D.
Funny thing is is that no one has yet overshot the B into B9 turn at the other end (admittedly not used very much).