What is a topographic survey?
Topographic survey is an engineering process used to map the Earth's surface. Topographic assessments differ from other types of surveys in that they primarily engage in the ground -shaped mapping, including soil outlines and heights, rather than roads. After completing the topographic survey, Mapmakers can create a topographic or outline map. These maps are then used for land planning, construction, mining and agriculture. Tourists and campers can also rely on a map of topographic survey when exploring trails or wilderness areas.
When completing the survey, engineers map the location of natural and artificial structures in a defined area. This includes water formations, soil outlines and even buildings or fences. The survey measures the distance between these elements as well as changes in altitude between each of them. Topographic survey generally does not show roads or very small devices made.
The survey process begins as a topographic Surveyors divides the area of the soil into a grid formula. Flags or other signsČKY is used to create grid lines that help inspectors remain throughout the process. Engineers can use traditional measuring devices or even satellites and aircraft to measure the distance between different points in the grid. These experts then rely on a special reconnaissance device for measurement and calculation of altitude changes and angles between each point.
After completing the topographic survey, engineers create a topographic map that uses an outline line to represent the shape of the ground. When the lines are placed close to each other, it indicates a relatively steep area of the soil. Lines that are further apart are shallow or slight changes in altitude. The lines are usually marked to show altitude, measured in footsteps or meters above sea level. To appear too complex, the map can be marked occasionally.
every fourth or fifth contour line can be darkened,To help readers distinguish between different lines. These darker outlines are known as guide lines and are marked at this point by the height of the soil. The V -shaped area is the lines are streams or rivers, while concentric circles represent hills or mountains. These circles can also represent a pit or emptiness on the ground, so users have to read related information about altitude to avoid possible errors. The smallest circle in a group of larger circles usually represents the highest or lowest point in the area, while larger circles show slopes around this peak.