SERVICES > Horizontal Control
Horizontal Control
Horizontal control is the geodetic network of precisely measured, coordinated reference points that ties every element of a survey, design, or construction project to a consistent, legally defensible coordinate system.
In land surveying, horizontal control anchors boundary and topographic work to state plane or project coordinates; in commercial construction, it serves as the field reference from which every structure, utility, and infrastructure element is located. Establishing reliable horizontal control at the outset eliminates compounding errors and ensures that deliverables from multiple phases and disciplines align seamlessly. Allen & Company’s licensed PSMs utilize high-accuracy GPS receivers and total stations to establish and densify control networks across projects of any scale.

