Navigation apparatus used-in vehicle

摘要: A technique is disclosed for enabling collection and/or refinement of digital map information aiding navigation route planning vehicles larger than ordinary cars, such as goods-vehicles, buses, and car+caravan combinations. In at least one embodiment, a profile vehicle's characteristics, or more routes followed, are logged by device, fed-back to server that supports the device with data updates. At server, an alternative processing centre, from plural devices analysed observe statistically patterns roads used these vehicles, categorise type vehicle.