Glossary of Acronyms and Terms
Definitions: From J to L
Lanes
- Auxiliary Lane – The portion of the roadway adjoining the traveled way for parking, speed change, turning, storage for turning, weaving, truck climbing, or for other purposes supplementary to through traffic movement.
- Center Turn Lane – A speed-change lane within the median to accommodate left-turning vehicles.
- Parking Lane – An auxiliary lane primarily for the parking of vehicles.
- Passing Lane – A section of two-lane, two-directional road where sufficient clear sight distance exists to allow a safe passing maneuver to be performed.
- Turn Lane – A traffic lane within the normal surfaced width of a roadway, or an auxiliary lane adjacent to or within a median, reserved for vehicles turning left or right at an intersection.
- Traffic Lane – The portion of the traveled way for the movement of a single line of vehicles in one direction.
Level of Service – A qualitative rating of the effectiveness of a road relative to the service it renders to its users, measured in terms of a number of factors, such as operating speed, travel time, traffic interruptions, freedom to maneuver and pass, driving safety, comfort, and convenience.
Local Road – Functional classification that consists of all roads not defined as arterials or collectors; primarily provides access to land with little or no through movement.
