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Setting up Avoidances on the Edge 800
You can customize the route calculation on your Edge 800 when using routable maps, such as City Navigator. This can include avoiding certain geographical features, such as toll roads or unpaved lanes.
Select Setup menu (wrench icon) from Main menu.
Select System.
Select Routing.
Press Avoidance Setup.
You will be presented with a further list of features you can choose to avoid. When these are set, the device will plan the route to avoid these settings.