What are the properties of contour lines?

Home › Uncategorized › What are the properties of contour lines?
What are the properties of contour lines?

Characteristics of Contours

Why is it unlikely that 2 contour lines will cross?

Contour lines never cross on a topographic map because each line represents the same elevation level of the land.

Can contour lines ever overlap?

Contour lines also never touch or overlap, unless certain rare instances occur, such as if there is a vertical or overhanging cliff. In the case of a vertical cliff, the contour lines will appear to merge.

What are the basic features of contour lines?


  • Contour lines must close, not necessarily in the limits of the plan.
  • Widely spaced contour indicates flat surface.
  • Closely spaced contour indicates steep ground.
  • Equally spaced contour indicates uniform slope.
  • Irregular contours indicate uneven surface.

How do you number contour lines?

Remember contour numbering reads up hill – in other words the top of the number is uphill and the bottom is downhill. Also remember the closer contour lines are together, the steeper the slope.

  • Must close on themselves, on or off the map.
  • Perpendicular to the direction of max.
  • Slope between them is assumed uniform.
  • The distance between them indicates the steepness of the slope, gentle or steep.
  • Irregular signify rough, smooth signify gradual slopes.
  • Concentric closed contours: hills or depression.

Can contour lines meet?

Contour lines can never cross one another. Each line represents a separate elevation, and you can’t have two different elevations at the same point. The only time two contour lines may merge is if there is a vertical cliff (see figure).

What is the contour line at a called?

In cartography, a contour line (often just called a “contour”) joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

How do you read a lot plan?

Tips on How to Read a Site Plan

  1. Find The Title Block. In the bottom right corner of most plans, you’ll find what’s called a title block.
  2. Learn the Plan’s Scale.
  3. Determine the Orientation of the Plan.
  4. Know the Datum Point.
  5. Note the Site’s Contours.
  6. Locate Existing Structures.

How do you read a floor plan elevation?

The elevations are typically drawn to the same scale as the floor plan….An elevation tells you what the home will look like from the outside including details such as:

  1. The size and appearance of the windows and the vertical positioning on the exterior facade.
  2. The appearance and height of the doors.

What is the importance of elevation plan?

An elevation drawing is an orthographic projection drawing that shows one side of the house. The purpose of an elevation drawing is to show the finished appearance of a given side of the house and furnish vertical height dimensions. Four elevations are customarily drawn, one for each side of the house.

What is the other name of end view?

What is another word for end in view?

Randomly suggested related videos:
Properties of Contour Lines

Properties of contour lines # Best way to read contour maps effectively!

No Comments

Leave a Reply

Your email address will not be published. Required fields are marked *