Measures distances, angles and elevations to map land.
Surveying measures and records positions and elevations to produce maps and set out works. Principles: work from whole to part, redundancy checks, and error control. Types: plane vs geodetic, topographic, cadastral, engineering and hydrographic surveys.
Setting out building corners from site coordinates is a surveyor's task.
Surveying establishes the position and height of everything on a site, so it guides design, setting out and construction accuracy.
Measures distances, angles and elevations to map land.
Surveying establishes the position and height of everything on a site, so it guides design, setting out and construction accuracy.
To measure distances, angles and elevations so that a site can be mapped, designed and built accurately.
Small errors in setting out can cause misalignment of structures and costly rework, so checks are essential.
Typical applications include setting out the corners of a new building on a plot, mapping a road alignment across rolling land and checking the ground levels before excavation for foundations.
Study "Bricks and blocks" first (topic 17 of 112 in Civil & Structural). It covers the groundwork this topic builds on.
Control points and benchmarks. Accuracy vs precision. Closing errors.
Setting out building corners from site coordinates is a surveyor's task.
The next topic is "Chain and tape surveying", which builds directly on this one.
It is classed as Beginner in Civil & Structural (topic 18 of 112). It is an entry-level topic. It relies only on basic school mathematics and the ideas introduced earlier in this discipline.
Want to practise? Open the interactive course for quick checks, quizzes, simulations and progress tracking.