Glossary of Acronyms and Terms
Definitions: From V to Z
Variance – Approval obtained that allows a project to fall outside statute regulations.
Vertical Alignment (Profile Grade) – The trace of a vertical plane intersecting the top surface of the proposed wearing surface, usually along the longitudinal centerline of the roadbed, being either elevation or gradient of such trace according to the context.
Vertical Curve – A curve on the longitudinal profile of a road providing a change of gradient.
Visioning - A series of meetings focused on long range issues involving a broad spectrum of people to generate ideas, set goals and priorities and to help formulate policy direction. Purpose: Sets the stage for long range planning activities; provides review of existing policy; sets new policy direction; provide stages for a wide variety of ideas and a range of potential solutions.
VISSIM – A microscopic, behavior-based multi-purpose traffic simulation program.
Visual Impact Assessment - A special study requirement for an Environmental Impact Statement document. A description of the visual environment assists in determining and understanding the level of visual changes that may arise from project implementation. When considering visual impacts, focus should be placed on the existing landscape, visually sensitive resources, and an individual’s view in the study area. Additional information on Visual Impact Assessment can be found in GDOT’s Environmental Procedures Manual.
Visual Quality – What viewers like and dislike about a particular scene.
