Dublin green taxiway centreline lights

[Christopher Low 41]

Is there a reason why most of the green taxiway centreline lights at Dublin are not on the taxiway centrelines themselves? I would have assumed that this should be the case.....

[Emi 5161]

Many airports do not have the lights directly on the Centerline because of increased wear of both, aircraft driving over them, as well as the lights themselves. If the lights are slightly besides the centerline most pilots will not drive over them and so the life of the lights as well as the wear of the tires gets reduced.