A map on the other hand is a static document which serves as a reference guide. A map is not, and can not be used to plot a course. Rather it provides a predetermined course, usually a road, path, etc., to be followed. Special consideration for the type of vehicle is rarely a consideration. Charts provide detailed information on the area beneath the water surface, normally not visible to the naked eye, which can and is very critical for the safe and efficient navigation.
Maps merely indicate a surface path providing no information of the condition of the road.
However the driver is able to make a visual assessment of such conditions.