Distance above or below this linear asset.  For example, if a sign is 10 feet above the road, the  Z-Offset is 10 feet.  This value is measured from the Z  Reference Point and can be positive (above) or negative (below).
Distance above or below this linear asset.  For example, if a sign is 10 feet above the road, the  Z-Offset is 10 feet.  This value is measured from the Z  Reference Point and can be positive (above) or negative (below).