Survaying

Engineering Survaying

When was surveying first recorded?

Egypt Sesostris (about 1400 B.C) divided the land of Egypt into plots for taxation

rope-stretchers

were ancient surveyors in Egypt who used ropes to measure distances and establish boundaries. 3-4-5 right triangle rope strechers

Dioptra

one of the first pieces of surveying equipment recorded in history

Roman Groma

Roman engineer and surveyor, used indigenous instruments and developed the Groma: used for aliging or sighting (uhhhh)

Libella

used for leveling

Chorobates

3 m long, used for measuring angle of the trench/convey of water

What do we do when surveying?

Measure the distance, angles and posistion on or near the surface of the earth using differenet measuring tools

Aerial survey

a type of surveying, using aircraft or satellite with a camera or sensor to map the surveyed area, measurments are done on images the camera or sensor created

Ground survey

surveying on the surface of the earth, everything is measured by physically touching them.

Based on the area being surveyed, ground survey is divided into: Geodetic survey, Plane survey