If your card on paper, find its description, which is called a legend.Most often, it is in the marginalia.The legend must indicate the scale of the map that tells you how much the measured distance in centimeters on this map be in reality on the ground.Thus, if the scale is 1: 15,000, it means that 1 cm on map is 150 meters in the field.If the map scale is 1: 200,000, then 1 cm, delayed on it is 2 km in reality
Measure the distance , which you are interested.Note that if you want to determine how fast you walk or drive away from one house to another in the city, or from one locality to another, then your route will consist of straig
ht line segments.You will not move in a straight line, and the route passing along the streets and roads.
Actually distance between the start and end point of your journey will be longer than the distance , measured between the start and end point of the path.To measure are accurate, put on the map a route of your movement in the form of short and long straight lines, determine their amount and find her real distance , which you need to overcome.
To determine the distance e map , you can use one of the many programs of geographic information that can be found on the Internet.There are specialized programs used by transport companies.By setting the start and end destination location, you can get a map on which the route will be done to your destination and shows the total distance it and distance between the nodal points of the route.
distance map can be measured using the tool "line" geoinformation packages Google Earth and Yandex Maps, subbase for cards that are space satellite images.Just turn on the tool, and click the mouse on a point, marking the beginning of your route and the one where it is planning to finish.The distance will be available at any given unit.