I'm looking at project 3890 which apparently was prepossessed by mapswipe. I think the mapswipe overlay has now been removed but what I have noticed is a number of highways in a straight line are not connected up. You get a stretch of highway then nothing other than a faint mark on the imagery followed by another stretch of highway.
Whatever the cause it means a lot more work has to be done when validating joining up all the unconnected highways and I don't think its one bad mapper its apparent on a number of tiles and mappers. It might just be coincidence and nothing at all to do with mapswipe but that's not my gut feel. Cheerio John
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