The total distance would be 3,030 meters. In order to do this, measure the distance from the start point to the edge of the map. The marginal notes give the road distance from the edge of the map to some towns, highways, or junctions off the map. To determine the total distance, add the distance measured on the map to the distance given in the marginal notes. Be sure the unit of measure is the same.
All distances measured by using the map and graphic scales are flat distances.
Therefore, the distance measured on a map will increase when actually measured on the ground. This must be taken into consideration when navigating across country. The amount of time required to travel a certain distance on the ground is an important factor in most military operations. Make these divisions in the same manner as fore graphic scale. The completed scale makes it possible to determine where the unit will be at any given time.