# Difference between revisions of "Glossary"

Central reservation
Strip of land or barrier separating a dual carriage way
Directionality
Whether a road is one-way, two-way or no-entrance
Divided highway
See dual carriageway
Dual carriageway
A road or highway in which the two directions of traffic are separated by a central barrier or strip of land, known as a central reservation or median
Freeway
Geometry
The layout of a road. Each road is made up of straight line segments. These can be arbitrarily short, effectively allowing curves
The level or elevation of a road with respect to surrounding roads. So a road would normally be a level grade. A road going underneath in a tunnel would be a -1 grade. A road going over would be a +1 grade. At complicated junctions such as freeway interchanges there can be many levels. So on a flat map we assign levels to show that while the roads cross, they do not connect because they are at different heights or elevations
HOV
High Occupancy Vehicle. A vehicle with 2 or more passengers. HOV Lanes, also known as Carpool Lanes and Transit Lanes, are lanes restricted for the use of cars carrying a specified number of passengers
Junction
The point where two or more roads connect; often incorrectly referred to as a 'node'.

Junctions look differently depending on the situation:

• Selected and editable segment junction
• Selected and uneditable segment junction (no permissions to change)
• Changed, unsaved junction
Map tile, tile
The Waze map is divided into a grid using 1KM square areas which are called tiles or map tiles. Changes to map are processed on a per-tile basis. Changes to any part of a map tile causes Waze to mark the tile as changed and it will be rebuilt in the next map update cycle.
Median, median barrier
Strip of land or barrier separating a divided highway or motorway
Motorway
Munching
Node
A handle on a segment or landmark allowing modification to the object geometry; also referred to as a 'geometry node'
Origin
Starting point for a driving route