A topographical survey holds the key to identify 3 different variables within an area of land, this in-turn is best represented on a map using the contour lines. The main reasons for a topographical survey are to collect survey data on the natural layout, man-made features and elevations of the land. This process is normally done in the early phases so that architects and engineers can plan accordingly by taking into consideration the variables given.

The infrastructure of the land plays many different factors on the whole productivity of the project, these variables are represented on the map as key indicators such as: elevations, trees, buildings, streetlamps… These factors would be represented on the map and could be a key indicator of variables affecting the outcome of any future project.

Who uses a topographical survey?

• Engineers need a topographical survey to help see the elevations of the land’s surface, this is to determine the ground levels to adjust the grade of the property.
• Architects might use the survey to create 3D models to plot their designs for construction purposes.
• Governmental agencies also use topographical surveys when conducting and applying construction, zoning and planning regulations. This, in turn, leads to the evaluation of the current infrastructure to see if future projects are possible.
• Topographical surveys are also used in the development of maps used within the industry, this varies between geology, petroleum and forestry.

Why are they so important?

Topographical surveys hold two main factors we wish we had more of in life, money and time. This is a major key step to have at the beginning of any design stage to help with the efficiency and producibility of any future projects.