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15 Nov
2013
15 Nov
'13
9:15 a.m.
Can't you use mkgmap:country=* in the style files to set the drive-on-left flags?
If you make a map for a single country, you don't need guessing. And you can't invoke guessing for a map with multiple countries. So this guessing feature looks rather redundant.
In my opinion there should be no guessing but a simple count. If a tile has more than 50% of roundabouts as drive-on-left, then this tile should be marked as drive-on-left. That way most of roundabouts would look correctly when navigating.
Perfect solution would be to make tile splitting along country border. But if we can't do that, then maybe we could get statistically best settings for drive-on flags?
-- Best regards, Andrzej