ive encountered a similar problem to a lot of other people i saw in forums but none of them were the same as mine.
the object was made using a cube with a path and array modifier to create the curved shape. the problem persists whether or not the modifiers have been applied. there are no materials and even when i do add a material the lines are still present. the lines don't seem to change shape or position when the camera is moved around. i have tried removing doubles and recalculating normals but it hasn't helped.
any help much appreciated