Map Distances

Distance on a map refers to the interval between two points, which can take either a straight or curved path. Measurement of Straight Distances: Identify the locations on the map. Employ a long ruler to measure the distance between the specified points. Relate the measured distance to the scale provided to determine the ground distance. […]

Distance on a map refers to the interval between two points, which can take either a straight or curved path.

Measurement of Straight Distances:

  1. Identify the locations on the map.
  2. Employ a long ruler to measure the distance between the specified points.
  3. Relate the measured distance to the scale provided to determine the ground distance.

 

Measurement of Curve Distances:

This can be accomplished through three methods:

  1. Utilize a pair of dividers.
  2. Employ a piece of thread.
  3. Use the straight edge of a paper.

 

Among these methods, the most straightforward and effective is the use of thread. To employ a piece of thread, stretch it along the route or curve to be measured, carefully following the path. Mark the end of the distance on the thread and transfer it to the linear scale or calculate the distance using a statement or R.F scale.

 

Direction:

Express the direction of one place from another using compass points or cardinal points. While there are four cardinal points (North, South, East, and West), for increased precision, eight cardinal points are often utilized, including North, North‑East, North‑West, South, South‑East, South‑West, East, and West.

 

Procedures for Measuring Direction:

  1. Locate the two places on the map.
  2. Position the four cardinal points at the given locations.
  3. Use a ruler to connect the place from which you want to determine the direction to the reference point.
  4. The cardinal point on or near that line indicates the direction.

 

Bearing:

Bearing describes the location of one place from another, expressed in degrees using a protractor and measured clockwise from North.

 

Procedures for Measuring Bearing:

  1. Locate the two places on the map.
  2. Position the four cardinal points at the reference point.
  3. Use a ruler to connect the two places.
  4. Place a protractor on the line, and the degrees falling on that line represent the bearing.

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