Planlengde

Planlengde is a term used in urban and regional planning to describe the linear extent or scope of a planning document or project area. It refers to the distance covered by the plan along a principal axis, such as the centerline of a corridor, the longest axis of a development area, or the main route featured in the plan. The concept is primarily descriptive and is used to communicate the spatial scope of a plan to stakeholders, agencies, and the public.

In practice, planlengde helps planners estimate resources, infrastructure needs, and implementation timelines. For a road or transport plan, planlengde may correspond to the centerline length of the planned corridor, including connecting segments. For land-use or detailed development plans, it can denote the distance between the plan’s start and end points along the plan’s main axis. The exact method of calculation and the axis used are defined within the plan documentation and may vary between sectors and municipalities.

Planlengde is not a fixed regulatory category; rather, it is a practical measure that facilitates planning, analysis, and communication. It is derived from geographic information systems (GIS), cadastre data, and planar maps, and may be updated as a plan is revised. Clear documentation of how planlengde is determined helps ensure consistency across alternatives and aligns planning work with budgeting and risk assessments.

See also: master plan, detailed development plan, zoning, urban planning, GIS.