Linjoitus

Linjoitus is a Finnish term used in surveying, construction, and architecture to describe the process and result of laying out a planned line or alignment on the ground. It refers to transferring a design line from plans to a physical position, so that construction can proceed according to the intended geometry.

The concept is closely related to layout work in engineering projects. Linjoitus is commonly applied to central lines and reference alignments for roads, railways, pipelines, buildings, and other facilities. It can also denote the documentation that records the laid-out line and the associated control points and measurements.

In practice, linjoitus typically involves defining the alignment in the design documents, establishing ground control points, and transferring the line to the site using surveying instruments such as total stations or theodolites, often aided by GPS. The process includes staking or marking the key points along the line, as well as determining offsets for features that run parallel or perpendicular to the alignment. Verification steps ensure the staking matches the design within specified tolerances.

Output of linjoitus may include a stake-out plan, a list of coordinates for important points, and physical marks or markers on the ground. The term is often used interchangeably with linjaus or linjointi in everyday Finnish professional language, though linjoitus emphasizes the staking-out aspects of the layout.

See also: linjaus, linjointi; surveying, stake-out.