Hi programmers, I don't know why, but Garmin uses slightly different bitmasks for vehicles in restrictions and roads. (mkgmap:car, mkgmap:taxi, ...) The current code sometimes uses these hard to understand bitmasks (e.g. RoadDef.tabAAccess, RouteRestriction.exceptMask) sometimes more or less similar arrays or lists like StyledConverter.ACCESS_TAGS or RoadMerger.mergeTagsNotBool I'd prefer to use one internal format for these 8 types and only translate them to the Garmin format when the data is written to the img file. This could be a single byte field which is filled after style processing, the corresponding tags in ways would be obsolete after that. A new class Vehicle could translate tags to bits in this byte and vice versa, a toString() method would make debugging easier. How does that sound to you? Gerd